It's certainly possible but you've also chained a very specific series of events to explain an observation. Such scenarios are most hygienically reasoned about

It's certainly possible but you've also chained a very specific series of events to explain an observation. Such scenarios are most hygienically reasoned about using a Bayesian quantification and updating of uncertainty. There's a lot we don't know but from what we do know and the observations we've made, life is likely to be extremely rare.