It would have been interesting if everyone in the 14th century would have been literate and had kept a journal during the black death.

I imagine a lot would have come with far more pessimistic views on how the world will evolve, with every family trying to live it its own house in the countryside, with villages on lockdown and all of them surrounded by walls, without pets like dogs or cats or with huge bonfires burning all day long in the cities (yeah, we didn't know much about diseases at that time), many fearing that commerce will never be the same, that ships will never sail again and....here we are...

Humans have really a short memory span, what we think it's going to change our lives forever will be dismissed a few weeks later, just as you slow down below the speed limit when you see a crashed car and an hour later you're doing 100 in a 60 miles zone. All those precautions will be forgotten, 99% will forget they have claimed eating their own cooked meal is 100 times better than in a restaurant, they will forget they have sworn never to set foot in a hotel again or to travel to Asia. It might not be this year, but in two years everyone will again travel all around the world, shaking hands, kissing fellow workers, dancing half-drunk on the beach, and drinking from the same cup with the first girl they picked up in a rundown bar.

There will be no adaptation, there will be forgetfulness!