50 years do not equate to millenia and much much more time.....how naive
So all it takes is a LOT of time, we can't engineer these things as a stepping stone?
Or how about this:
How long DOES it take for life to form by abiogenesis? Are there STAGES of living as opposed to non-living?
Seems like a fairly instant result if you have the right conditions, even if the living thing is short lived.