https://www.sciencealert.com/astronomer-reveals-the-dangers-of-spacexs-polaris-dawn-mission
Space is an unnatural environment for humans.
Don't disagree, just looking at it from the Lord Farquaad point of view, "Some of you may die, but it's a sacrifice I am willing to make". I think space exploration is good and if we have to burn a few billionaires to get there, I am sanguine.
I think we could learn so much if this ends in a total wipe out of some billionaires.... Let's hope for the best for science, and then do some replication studies with more billionaires to be sure all variables stay the same