Always super interesting to see how "powerful people" communicate.

big tech CEOs and major politicians use email almost as if it's an instant messenger: short, informal, to the point.

I guess it kinda bites them in the ass because the way I know this is via email leaks or subpoenas...

But it does mean that people can use whatever clients they like, and they can be across multiple organisations without weirdly expensive plans and administrators bridging instances or what have you.