A better title would have been "what a jaded ex-academic with no relevant domain knowledge thinks happened at NASA during the last Columbia mission."
Yes, they didn't launch Atlantis on short notice, which was probably in hindsight a mistake. But Greg's not even wrong when he asserts that "(the combined Atlantis/Columbia crew) could have sat on the (expletive) floor and been alright." The shuttle went through a complicated sequence of re-entry maneuvers to land safely. It's not just 3g in one direction until touchdown.
Is Greg's core point true?
The NASA honchos decided that even if there was damage (caused by a chuck of foam breaking off the external tank during launch and hitting the wing) nothing could be done, so decided not to check for damage (which could have been done with an EVA, or sophisticated ground-based imaging systems, or recon sats).
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