I definitely agree there is a strong genetic component, I'm waiting for more research to see if there is strong evidence of the heritability of development going wrong. I think the answer is yes. I'd also love to see if the other PDs present this developmental glitchiness too.

For some reason borders hang onto early childhood communication methods. I'd be interested in any research you have read. I've seen the teenage BPD brain development study but nothing else. Fascinating.