The main lesson we can take is to design our software with the assumption that the machine can be turned off (or crash) at any time. That is obvious when you’re

The main lesson we can take is to design our software with the assumption that the machine can be turned off (or crash) at any time. That is obvious when you’re in a browser or running in a VM, but it was very far from engineers’ minds 20-30 years ago. Most note taking software I’ve used doesn’t even have a save command. That’s a huge step forward.