I don't get it. Is this some content-modifying (don't want to say AI) gateway between email and some messenger? If so, how do the messages look like for the people on the email side? I don't need screenshots of a messenger app because I've seen dozens of them and they all look the same.

It's not AI...its conversational email (its your email, but looks like chat). Your email will feel like chat but the people on the other side will still see their regular email thread if they don't use Spike. Super helpful.

I second this - The messages look just the same as a regular email for people that don't use the Spike app.