I wish there was a modern correspondence medium similar to letters

When I was at school I had a penpal in Japan, this was before email so we corresponded through airmail and it took about 2 weeks between letters. There's a lot to be said for that kind of communication, now everyone can talk to anyone anywhere in the world instantly.

And I think for all it's incredible advantages we've lost something. When you're writing a letter that'll take 2 weeks to get somewhere you can't just put 'lol' or 'k'!

So I do appreciate the authors points but I don't see how we could ever go back to that, from a technical point of view it would be easy to build a service that fulfilled his criteria, but would anyone use it? Maybe the world is ready for an 'inverse Twitter'.

There is a modern media similar to sending letters ... sending letters. Last time I checked you could still post a letter in the mail to far off places.