Junk DNA generally doesn’t survive that long in evolutionary timescales because there’s nothing that prevents mutations. It seems a bad information storage system.
Lots of other problems with it too. Why is there any last-universal-common-ancestor in this scenario? You would want to drop a full ecosystem with millions of different organisms, each with different FEC shards of data. If you can deliver some bacteria to a virgin planet, you can deliver multiple kinds of bacteria, not just one. Yet, genetics finds that there’s a LUCA (not that much of LUCA survives in current genomes).
Junk DNA generally doesn’t survive that long in evolutionary timescales because there’s nothing that prevents mutations. It seems a bad information storage system.
Lots of other problems with it too. Why is there any last-universal-common-ancestor in this scenario? You would want to drop a full ecosystem with millions of different organisms, each with different FEC shards of data. If you can deliver some bacteria to a virgin planet, you can deliver multiple kinds of bacteria, not just one. Yet, genetics finds that there’s a LUCA (not that much of LUCA survives in current genomes).
Indeed it is seen easily when comparing multiple related species as it is that which changes very fast and seemingly randomly (and uniformly).