Reply #4: I think it is the early exposure to polyacrylamide dust

[HereSince1628]

Many of the DNA jockeys like this idea.

Considering the age of the universe, the precollision time needed to evolve life on some lonely planet somewhere, the need for multiple appropriate collisions needed to overcome the unlikelihood of an individual circumstance of undoubtedly low probability to eject the undoubtedly rare bio-bearing ejected boloid onto a trajectory escaping its own planetary system while bringing it into an extremely fortuitous intersection with a life sustaining planet rather than missing entirely or being drawn into collisions with life unfriendly objects...
I wonder...
is there sufficient time to consider this really probable. Any DU'er know if the calculations have been done?

With all the improbability of the intervening events it just seems less improbable that chemical evolution would lead to life on little old Terra.