yes. I believe the reason I first tried LSD was because another friend with DID said that LSD permanently gave them the ability to "think in parallel". unfortunately it did no such thing for me but it does do something else interesting that makes it still worthwhile. also I experienced an accidental ego death once and it was probably one of the most interesting things that's ever happened to me.

(I think ego death can only ever happen by accident because the moment you realize it's happened, that realization means it's over.)

> How do you think the two interact?

In my experience, LSD allows for a clearer identification of parts, especially in memories. That means while normally I can recall memories and feel like I was always the only one there, on LSD others can recall the same memories and realize that they were there too and had some influence on what happened at the time. I think there are also some memories where I wasn't at all and that can only be recalled while on LSD.

LSD I think also helps with switching and like "identity" of parts. It's easier for them to be completely themselves, I think. Less blurry/fusion/unknown/etc. stuff