| I think it's a totally fair question. We should be guided by actual evidence, not hearsay and conjecture. Plenty of things seem obvious but later turn out not to be.
For example, one thing to consider would be the cumulative effect of breathing elevated ppO2 (above 0.5 bar). This is known to cause problems at least in the short term. Does anybody know of any studies which show one way or another, what the long term effects are?
Does anybody know any study which does a proper risk analysis of O2 toxicity vs DCS risk?
As people have often said, DCS is survivable, Ox-tox will kill you. But those people don't tend to provide any real evidence other than anecdotal.
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Ian |