[Diamond]

if life, per se, in all of its various locations throughout the universe, shares the same fundamental engines ~ they should be expected to be shuffled a bit differently (but otherwise utilize the same DNA) coming from different places.

It's hard enough to ponder why a single universal code would evolve, but how in this world or any other could the SAME DNA code evolve convergently?

Cordially,

[muawiyah]

How/why ~ it's pretty obvious. For most proteins there are only a few coding sequences that suffice to produce them ~ for a great number there's only one.

So whether or not the DNA that does the job was simply squeezed out of the materials at hand or came about through some sort of mutation, or evolutionary demigod like "natural selection", only that one would work.

If you need a certain protein on Earth, you will find essentially the same little DNA engine elsewhere producing it ~ even at the farthest reaches of the observable universe.