An infinite amount of monkeys each given an infinite amount of time would produce all infinite strings possible on a typewriter (this includes ones that just happen to be terminated with a neverending substring of blank spaces, i.e. one where the monkey stops or presses whitespace keys and nothing else an arbitrary number of times).

If a cure for cancer exists and is expressable through language, they would not only produce one, but it would be there in every single language transliteratable to a Latin script; it would be there in ASCII art; it would be there in literally every text-based form imaginable. Of course the trouble would be sorting the infinite wheat from the infinite chaff.

Edit: https://libraryofbabel.info/ for the finite strings of 3200 characters.