- A 1 000 km-wide, 1 000 km-tall Antarctic ice structure was proposed as a combined geo-engineering and space-launch platform: anchoring it to bedrock would sequester ~10⁶ km³ of water per kilometre of height, lowering global sea level by ~3 m per kilometre and ultimately ~3 km if fully built, while the summit could “catch and spit satellites.”  
- Practical objections raised include the high plasticity of ice at terrestrial temperatures, requiring extremely rapid top-layer deposition to outrun viscous flow, and the need for the mass to rest on the ocean floor rather than float to achieve sea-level reduction.  
- Discussion pivoted to iceberg/ice-floe engineering as a related discipline, noting that thermal losses to seawater become negligible at large scales and that calving and transport of existing glaciers could be an alternative strategy.  
- Two AI-assistant services were shared: Elicit (https://elicit.org) as a “research assistant” for literature tasks, and yudbot.com, a chatbot that mimics Eliezer Yudkowsky and was criticized for repetitive, risk-focused output interpreted as a blend of Yudkowsky and Timnit Gebru viewpoints.  
- A link to the SemiAnalysis essay “Google: ‘We Have No Moat, And Neither Does OpenAI’” (https://www.semianalysis.com/p/google-we-have-no-moat-and-neither) was posted, prompting speculation that the thesis may explain Sam Altman’s reported pause on nine-figure model-training budgets.