Comment by StopDisinfo910

> And 15 years ago, we just used Office files in a Dropbox folder. It solved all of our collaboration issues.

No, it did not.

I worked through that. Someone had to be in charge of the master version of all documents and ensure modifications were properly merged and not done simultaneously. Getting to the final version of anything was deeply annoying.

Now everyone can just work on the shared document. You see modifications as they happen. Office intelligently locks what needs to be locked. It just works. I can't tell you how much time this feature alone saves me.