What is the data which confirms a man could not survive 3 days inside a sea creature? Conjecture is all that has been provided so far.<quoted text>
No. There is NO evidence that supports the claim that a man could live three days inside a whale's stomach. There IS evidence that contradicts the claim that a man could live three days inside a whale's stomach. Your list of "what ifs" are nothing more than desperate flailing. As soon as you have datum one that supports human survival inside the digestive system of a cetacean, you'll start having a point. Until then, it's just you denying reality.
Is it possible for a naked man to survive on the surface of Pluto?
Regarding the Pluto challenge, how cold is it, and survive for how long?