9/2/2025 Lecture Gilgamesh, Babel, and Planet Nine — Transcript Summa

Overview and Context

• The lecturer discusses current and upcoming astronomical searches, focusing on finding a possible distant planet (Planet Nine). A new telescope is slated to go up in the next couple of years, increasing the chances of detection; the speaker emphasizes the improved probability due to the new instrument.

• The term used in the talk about the planet’s search sometimes shifts to “platinum nine,” a misnomer heard in the stream of discussion.

• A key metaphor is introduced: objects can be “behind the sun,” which is not literal but refers to observational blind spots caused by solar glare and reflection on instruments. This is not a physical shadow behind the sun, but a band of the sky that cannot be observed because the sun’s light interferes with detection.

• The idea is that asteroids can hide in this observational blind spot for 2–3 years and reappear suddenly, sometimes coming close to Earth when they re-emerge.

• The telescope described is designed to observe in a range less affected by solar glare, aiming to improve detection of objects that currently slip through observational gaps. The project will be operational in a couple of years, and the search will extend to finding the hypothetical Planet Nine.

• The instructor also ties these astronomical topics to the recent content of the course, hinting at a discussion of ancient texts (Gilgamesh) to illustrate how we interpret unknowns and elusive phenomena.

• Classroom logistics: students are reminded to put away other materials, pull out a blank sheet of paper, and keep one sheet of paper plus a utensil on the desk. The class will be organized into groups labeled 1 through 5, with a specific seating/position protocol, and students will not refer to their notes during a certain exercise.

Key Concepts and Terms

• Behind the sun (observational blind spot): observational limitation caused by solar glare/reflection on instruments; a range of sky is unusable for detection.

• Planet Nine (hypothetical): unseen planet proposed to exist in the outer solar system; the search includes looking in ranges less affected by solar glare.

• Arcadian version (as discussed in the talk): the most complete version among several textual traditions of the Epic of Gilgamesh; other versions include Babylonian and Hittite.

• Versions of Gilgamesh:

  • Babylonian version

  • Arcadian version (most complete, as noted in the talk)

  • Hittite version

• Cedar Forest, Humbaba, Ishtar, Enkidu (Inkadu), Shamat (the harlot), and the Bull of Heaven: central figures and motifs in the Gilgamesh epic discussed in the classroom exercise.

• Utnapishtim (described in the talk as a great ancestor): the survivor of the flood who imparts wisdom about immortality and the human condition.

• Inkadu/Inkadu Dine (Enkidu): the wild man who is tamed by Shamat and becomes Gilgamesh’s companion; his death triggers the later quest and thematic pivot.

• Ishtar: goddess who desires Gilgamesh; her demand to marry him triggers the Bull of Heaven episode.

• The Bull of Heaven: Ishtar’s punitive response when denied; its strength and consequences are described (ground opening and many deaths).

• Zikrat Babylon / Tower of Babel tablet: discussion of a tablet that reveals details about the Tower’s appearance and construction; Nebuchadnezzar II is depicted on the relief; the tablet links Mesopotamian architecture to the biblical Tower of Babel story.

• Nebuchadnezzar II and the Babylonian tablet: the tablet’s claim to identify the builder and to document the construction from the upper sea to the lower sea.

• Thematic terms: mortality, immortality, human flourishing, living well, and the wisdom of ancient literature about how to live a meaningful life.

• “Zombie apocalypse” metaphor: Ishtar’s threat is humorously reframed as a zombie apocalypse in class discussion.

• The Tower of Babel narrative parallels and contrasts with Sumerian cosmology and polytheism vs. later Judaism’s monotheism.

Plot Breakdown by Thirds (as outlined in the lesson)

• First third: Beginning to the return from the Cedar Forest

  • Gilgamesh as a tyrant and a partly divine king (part god, part human).

  • Enkidu as a wild man created to challenge Gilgamesh; their confrontation and eventual alliance.

  • The taming of Enkidu by Shamat, the harlot, who teaches him human ways, including sharing bread.

  • The journey to the Cedar Forest and meeting Humbaba, the guardian.

  • The act of killing Humbaba and the cedar forest’s desecration.

  • The dream that prefigures danger (a giant axe coming down); Gilgamesh seeks interpretation from his mother, who explains the dream’s implications.

  • The weight of the axe is discussed; a figure given is 500 ext{ pounds} in the narrative, illustrating the epic’s grandeur and the hero’s weaponry.

  • The weight/density details prompt a moment to google unit conversions and consider the scale in pounds.

  • The cedar forest elements—great cedar trees, and the obstacle they present to mortals and heroes alike.

  • The partial confusion and clarifications around the characters (e.g., who is Bromance in the group, what “they” did, etc.).

  • The student exercise emphasizes focusing on what happened in this first third and documenting it in order.

  • Important note: the “Har(a)lot” Shamat is introduced as the human who subdues Enkidu by teaching him civilization.

  • The description of how Shamat teaches him human norms (bread) and tells him about Yogamash (a narrative element used in the class discussion), which spurs conflict and further action.

  • The group is reminded to exhaustively describe events in this first third, not to move too quickly, and to avoid relying on notes during the exercise.

  • The discussion addresses how the dream and the axe weight will inform interpretation of the text, as well as the cedar forest’s symbolic importance.

• Second part: Beginning of Ishtar’s proposal and the Bull of Heaven; leading to Inkadu’s death

  • Ishtar asks Gilgamesh to marry her; Gilgamesh rejects her, detailing why he cannot be satisfied by her as a partner.

  • Ishtar goes to her father, seeks the Bull of Heaven to strike at Gilgamesh and Enkidu; the father initially refuses to release the bull.

  • Ishtar threatens to unleash the dead (the “zombie apocalypse”) if her demand is not met; a dramatic metaphor for upheaval and catastrophe.

  • Gilgamesh and Enkidu defeat Humbaba; but in this portion, it is Ishtar’s escalation that intensifies the epic conflict, culminating in strategic consequences for the heroes.

  • The discussion notes the need to recall Ishtar’s actions and the consequences for Gilgamesh and Enkidu, including the bull’s power and the devastation when it is unleashed.

  • The section ends with Inkadu’s (Enkidu’s) death, marking a turning point in the epic and shifting the focus from alliance-building to the quest for immortality.

• Third section: From Inkadu’s death to the end

  • The emphasis shifts to Gilgamesh’s search for immortality after Enkidu’s death, and the conversation with his great ancestor (Utnapishtim) about mortality.

  • The ancestor tells Gilgamesh that immortality is not for him; the core message is about how to live a meaningful human life rather than achieving eternal life.

  • The teacher highlights this moment as the most important in the epic: the wisdom about what it means to be human and how to live with mortality.

  • Gilgamesh’s attempts to regain immortality include a quest to find a life-restoring secret, but the narrative ultimately returns to the moral about human flourishing.

  • The discussion returns to the paradox of human achievement, the limits of mortal power, and the prescriptive guidance for living well.

Characters and Relationships (Key Roles)

• Gilgamesh: tyrant-king, two-thirds divine, part god and part man; seeks immortality; embarks on epic quest; experiences grief for Enkidu; wrestles with mortality; receives a prescriptive wisdom from his ancestor.

• Enkidu (Inkadu): wild man created to challenge Gilgamesh; tamed by Shamat; becomes Gilgamesh’s close companion and co-hero; dies, prompting Gilgamesh’s fear of death and quest for immortality.

• Shamat (the harlot): the temple prostitute who trains Enkidu in civilization; helps transform him from beast to human; she teaches him bread-sharing and other human customs.

• Humbaba: guardian of the Cedar Forest; slain by Gilgamesh and Enkidu.

• Ishtar: goddess of love and war; desires Gilgamesh; incurs the Bull of Heaven after being rejected; her actions provoke the catastrophic consequences of the bull’s assault.

• The Bull of Heaven: Ishtar’s weapon against Gilgamesh; its impact is devastating (opening the earth and killing many; the scale is described as massive).

• Utnapishtim (the great ancestor): the immortal survivor who counsels Gilgamesh on the nature of mortality and the human path to meaning; he explains that immortality is not in the cards for mortals.

• Arcadian vs. Babylonian vs. Hittite versions: textual traditions that carry different details; Arcadian is presented as the most complete version in the lecture.

• The ferryman and crossing: the hero’s attempt to reach the Other Side (the afterlife or the beyond) is cut short by a poisonous river; the crossing obstacle reflects the boundary between life and death.

Versions and Textual Traditions

• Babylonian version: one of the earliest versions of the Gilgamesh epic.

• Arcadian version: described as the most complete version; used in the lecture as the primary text for discussion.

• Hittite version: another recorded version used in comparative discussions.

• The lecturer notes that there are at least four versions and highlights the significance of using the Arcadian version for a more complete reading.

• The differences among versions affect details like character portrayal, episode order, and certain motifs, but the core arc remains the same: tyranny and companionship, quest for meaning, and the wisdom of mortality.

Tower of Babel: Archaeology, Text, and Intertextuality

• The Tower of Babel tablet: a privately owned tablet pictures the Tower of Babel and the builder Nebuchadnezzar II; the relief identifies Nebuchadnezzar and the Zikrat Babylon.

• The tablet content: describes construction from the upper sea (Mediterranean) to the lower sea (Persian Gulf) and mobilization of people to build the structure of Babylon, the “Zikrat of Babylon.”

• Dating: the tablet dates to the sixth century BCE, about six hundred years before the zero; this timeframe coincides with or is close to the canonicalization period of the Torah, illustrating a timeline where Judaism’s textual identity coalesces in the ancient Mesopotamian context.

• The tablet’s image and text provide concrete archaeological evidence that the biblical Tower of Babel was inspired by a real Mesopotamian megastructure, not merely a legend.

• The discussion emphasizes how this evidence illuminates Judaism’s historical development, including the dating of canonical texts and the cultural memory of Mesopotamian monumental architecture.

• The Tower of Babel narrative in Genesis is juxtaposed with Mesopotamian practice, noting polytheistic anthropomorphic deities in Sumerian contexts and the later monotheistic emphasis in Judaism, and the way these threads intersect in ancient literature.

• The lecturer notes the broader scholarly context: there are multiple versions of the Tower story in ancient texts, which informs how we understand ancient Near Eastern literature and its influence on biblical narratives.

The NASA Planet Nine Segment and Contemporary Science

• A NASA Space News video is referenced, presenting a current interpretation of planet nine searching and the outer solar system’s mysteries.

• Planet Nine hypothesis: astronomers have observed unusual motions in distant icy objects, small accelerations, and orbital shifts that are difficult to reconcile with known planets; adding a massive unseen planet helps explain the data.

• Infrared data from past space missions has shown a faint moving source that could be Planet Nine, though its tilt may not perfectly match predictions.

• The discovery of a distant dwarf planet nicknamed Ammonite has deepened the puzzle, suggesting the outer solar system’s structure may be more complex than a single hidden planet would imply.

• The video invites viewers to watch the full NASA Space News YouTube video for a deeper dive and cites peer-reviewed science as the basis for current thinking.

• The lecturer uses this to illustrate how scientific theories are named and debated within a culture of ongoing discovery and peer review.

Intersections with Ethics, Philosophy, and Practical Learning

• Mortality and meaning: The central teaching from Utnapishtim’s conversation with Gilgamesh is that immortality is not the human lot; the valuable alternative is learning to live a meaningful life within mortal limits.

• Practical wisdom for living: The prescriptive guidance—“live, laugh, love, appreciate”—is highlighted as the key ethical takeaway of the epic.

• Education as a learning process: The instructor emphasizes that cramming is ineffective and stressful; students should exhaustively discuss and write down what they recall from the first third, reinforcing a constructivist approach to learning through group discussion and recall.

• Group work dynamics: The class structure is designed to equalize understanding across groups, acknowledging that some students will grasp material more readily than others and that collaborative discussion helps balance knowledge distribution.

• Human vs. divine perspectives: The Tower of Babel discussion invites reflection on polytheistic mythologies versus monotheistic developments in Judaism, prompting ethical and philosophical considerations about belief systems and cultural memory.

Notable Details, Examples, and Metaphors from the Transcript

• The metaphor of being “behind the sun” as a limitation in perception: the sun’s glare makes certain sky regions invisible, akin to cognitive blind spots in understanding a narrative or phenomenon.

• The “zombie apocalypse” as a humorous exaggeration: Ishtar’s threat to unleash the dead is described as a faux end-of-world scenario to illustrate the severity of consequences.

• Bromance and group dynamics: The term “bromance” is used in the discussion to describe the special bond between Gilgamesh and Enkidu before their falling out and alliance, highlighting how modern language can color ancient relationships.

• The “weight of the axe” and other concrete details: The discussion of the axe’s weight (
  500 ext{ pounds}) and the cedar forest’s scale helps anchor the epic in tangible terms and invites consideration of how these details would be interpreted in translation and cross-cultural reception.

• Bread-breaking as a civilizational moment: Shamat’s teaching Enkidu to break bread and share meals marks the transition from wildness to civilization, a recurring motif in Mesopotamian storytelling about culture and community.

• The Tower of Babel tablet as archaeological corroboration: The tablet’s identification of Nebuchadnezzar II and the seven-tiered structure provides tangible context for biblical narrative reception and the historical memory embedded in Judaism.

Connections to Previous Lectures, Foundational Principles, and Real-World Relevance

• Textual transmission and version history: The discussion of Babylonian, Arcadian, and Hittite versions reinforces how ancient epics exist in multiple recensions, illustrating the scholarly approach to comparative literature and the interpretive work involved in reconstructing a canonical version.

• Archaeology and textual interpretation: The Tower of Babel tablet serves as a concrete example of how archaeology can illuminate literary and religious history, bridging ancient myth with material culture.

• Myth as wisdom literature: The emphasis on mortality, living well, and human limitations aligns with the broader tradition of wisdom literature, where stories serve as ethical guidance rather than mere entertainment.

• Contemporary science and public understanding: The Planet Nine segment shows how current scientific inquiry evolves with new data, models, and peer review, paralleling how ancient texts are reinterpreted in light of new scholarship.

• Critical thinking and science communication: The lecturer’s references to NASA Space News underscore the importance of credible sources and peer-reviewed science in public discourse about astronomy.

Numerical and Mathematical References (LaTeX)

• Axe weight mentioned: 500 \text{ pounds}

• Group exercise structure: 1, 2, 3, 4, 5 (five groups)

• First third duration markers: 2-3 \text{ years} (observation gap for asteroids)

• Distances and canonic timelines: 600 \text{ BCE} (tablet dating; six hundred years before the era commonly referred to as 0 CE)

• Number of versions noted: 4 (at least four versions: Babylonian, Arcadian, Hittite, etc.)

• Parallelism to biblical Genesis Tower of Babel: seven tiers: 7

• Observational ranges and time scales: references to blocks of time and cycles could be interpreted as 7-tier structures and larger cosmic timescales, though not numerically specified beyond the explicit numbers above.

Quick Recap for Exam Preparation

• Know the major players in Gilgamesh (Gilgamesh, Enkidu/Inkadu, Humbaba, Ishtar, Shamat, Utnapishtim) and their relationships, especially how Enkidu’s transformation and later death influence Gilgamesh’s quest.

• Understand the two central thematic arcs: conquest/hubris and the later wisdom about mortality; the keynote line about mortality being “not your lot” and the corresponding prescriptive wisdom about living well.

• Be able to describe the Cedar Forest episode, Humbaba’s defeat, Ishtar’s appeal and the Bull of Heaven, and the moral consequences for Gilgamesh and Enkidu.

• Recognize the Tower of Babel discussion as a bridge between myth and archaeology, including the Nebuchadnezzar II relief, the Babylonian/Zikrat Babylon inscription, and the link to Genesis.

• Distinguish between textual traditions (Babylonian vs Arcadian vs Hittite) and why the Arcadian/ Akkadian text is treated as the most complete in this lecture.

• Connect the Planet Nine discussion to broader themes about unseen forces, observational limits, and the role of new instruments in expanding human knowledge; note the Ammonite discovery and the Planet Nine hypothesis.

• Reflect on the ethical/philosophical takeaways: mortality, living well, and the value of careful, collaborative learning over cramming.

References and Tangential Points Mentioned in the Transcript

• The ongoing NASA Planet Nine discussion and the peer-reviewed science context.

• The concept that there are multiple versions of the Epic of Gilgamesh (Babylonian, Arcadian, Hittite) and that Arcadian is the most complete in the given material.

• The Tower of Babel tablet discovery, Nebuchadnezzar II’s depiction, and the cross-cultural dialogue between Mesopotamian monumental architecture and biblical narrative.

• The broader commentary on extraterrestrials, conspiracy talk about a “dark state government,” and the possibility that the universe could be inside a black hole—a nod to popular science fiction and public discourse, included as a conversational aside in the lecture.