> I don't think Airseed ended up panning out but I wonder what he brought from that business to Superhuman. There are several other businesses that specialize

> I don't think Airseed ended up panning out but I wonder what he brought from that business to Superhuman. There are several other businesses that specialize in doing just this, so even if they wanted to continue doing the exact same thing it wouldn't necessarily make sense to continue using their own in-house technology. That said email is insanely difficult to wrap your head around, I've been doing it full time for several years and don't pretend to be anywhere near close to fully understanding it. So just having experience in the space and having tried out some different approaches to similar problems would surely help a ton.