ah yes so he's up to making aircraft carrier floating libertarian treehouse rube goldberg mad max platform out of pykrete
One idea for the bottom of the iceberg is to erect a grid of airtight barriers on the bottom of the berg, with cells a few dozen meters wide and a few meters tall and blow air bubbles into them
this makes this grid having to support several tons of buoyancy force, it will have to be airtight but also its connection to ice will have to be so, and ice will probably deform over time. did all of these motherfuckers dropped out of middle school?