I discovered recently that Microsoft OneDrive will detect a ransomeware attack and provide you with the option to restore your data to a point before the attack!
MS need to advertise this feature more, because I'd never heard of it and assumed all the files on the PC were toast!
Of course, the fact that a script on Windows can be accidentally run and then quietly encrypt all the users files in the background is another matter entirely!
Sign language doesn’t need hearing or sound making!
I suppose language requires a means of communication and someone to communicate to at a minimum. Although actually we think in a language so I guess we don’t need someone to communicate to.
Then maybe language creation just requires the right sort of thoughts?
Edit:
I should have read the article first LOL!
They say as much:
> "Language is both a cognitive system and a communication system," Miyagawa says. "My guess is prior to 135,000 years ago, it did start out as a private cognitive system, but relatively quickly that turned into a communications system."
A good question would be whether sign language can exist at all without spoken language (and its related adaptations) having first existed within the species.
Worth a click just to see how we used to live!