Uploaded March 2024 | Updated September 2026, 3 weeks ago

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Continuing our consideration of physics and embodiment, we tackle the big question: Which way is up?

My previous videos on the perplexities attending our notion of "seeing" are here: pworldrworld.com/fred/?page_id=750

The video on the role of tubes in particular is this one: youtu.be/VMqrQWFMyVU?si=7-GbMvni1SA1OPPe