I have many stories. Here's a fun one. I worked for a company a long time ago that traded with companies all around the world. A lot of their customers were sm

I have many stories. Here's a fun one. I worked for a company a long time ago that traded with companies all around the world. A lot of their customers were small businesses in rural Africa, South America, etc. and they in turn had local banks they used to facilitate payments to and from. A large number of these banks did not have a reliable internet connection, or if they did, they most assuredly didn't use it for payment instructions. Instead, I had to jerry rig a system that used TELEX -- yes, TELEX -- connected to IBM's Lotus Domino/Notes suite of mail transport software. That way we could "email" domino and it'd connect to some fantastically expensive TELEX hardware which then went over the wire on whatever the hell network they'd use for that in the 2010s. We had carefully crafted email addresses with the TELEX numbers embedded (ever wonder why email address specs are so complicated? So people like me can do dumb shit like this!) We'd then send them very carefully formatted instructions in uppercase ascii, to conform with (I forget which, SWIFT perhaps?) payment instructions that were clearly invented in the typewriter era and then hoisted, kicking and screaming, into the digital age with nary a change. Fun times. Worked really well and tied in with all the other stuff they'd hang off of Lotus Notes. If you ever wonder why a lot of businesses struggled to move away from it? There's your answer.