re: #197 Nojay UK
One thing is people in the future will look at pictures of crowds, notice the absence or presence of facemasks and be able to say — “that’s from before the 2020 coronavirus outbreak” or “that must be some time after the 2020 coronavirus outbreak”.
Or check the dates on the photos, and say: “OMG! That was during the 2020 coronavirus outbreak, WTF were they thinking??!!“