So, the deal is if chordates have brains and octapus type animals have brains and insects have brains, and the common origin critters didn't have brains, then we each have "evolved" our own brains ~ or managed to plug the right viruses into the right spots in our genomes to get brains.
Actually, the finding here, however you interpret it, is very important for expectations in xenobiology.
The latest thought concerning brains has been that since they arose only once on Earth, it would be unlikely for them to have arisen elsewhere in the universe.
Now they are saying brains popped up at least three times right here on Earth.
Makes'em common as dirt and something to expect space aliens to have too.
Semantics.
At the level of this new information; terminology transcends taxonomy.
Yeah, I like that...terminology transcends taxonomy.