On: Every neuron potentially has a different genome than those it's connected to

[abecedarius]

Wait, the headline says no two alike, while the body text seems to go no further than that every cell is potentially different. What is it? If the somatic mutation rate is >1/neuron, that's a real surprise to me, but if it's "there's plenty of mosaicism and it makes a real difference", then not.

[dang → abecedarius]

Good catch. We've changed the title above to a representative phrase from (I think) the paragraph you're referring to.

[abecedarius → dang]

OTOH Real_S comments that the rate is indeed >1. So huh, I learned something.