I wasn’t being quite honest in last week’s post about manual typewriters. You didn’t just get one go. Yes, if you wanted perfection and hit the wrong key, you could rip out the paper and start again.
Or, you could find a bottle of this fiddly white stuff, put just enough on the brush in the lid, paint over the typo on the paper, let the fluid dry, push the typewriter carriage back along the line, then have a second attempt at the right key.
The result was a correct communication, if an aesthetic disappointment.
At least you never had a problem with autocorrect. The machine didn’t decide what you ought to be writing and type that instead.
One reason to be cheerful.