Email is the cockroach of the internet - it outlives every wave trying to kill it. Forget Slack, forget Discord, forget chat apps. Email is universal, decentralized, and asynchronous. It's not sexy, but it's the ultimate survivor.
Remember "bang paths"? ( host1 ! host2 ! username )
Raise your hands, all of you who had an email address *without* an "@" sign.
I did. But I was young them, and now I'm 50.