[Aurel]

This is an interesting topic. There are two ways of having evolution in a species: 1. Natural selection of the fittest and 2. Passing on genetic mutations or new combinations.

In our case, as the OP mentioned, even the unfit get to pass their genes now, so option #2 is the most likely. Interestingly, we may be now affecting our own evolution by the way we modify our environment, through our exposure to mutagen chemicals or electromagnetic radiations.

Another possible mechanism is the changes in radiations coming from space, especially from the sun. Since this is a process we have no control over, one could see this as the way our creator can control our evolution, by controlling solar activity for instance.

The beauty in all this is it suggests the interrelation of everything, and possibly the intelligence of the universe which can design the evolution of its inhabitants, through DNA changes induced by cosmic radiations.