The year is 1899.

◙ Vacuum cleaner is still not invented

◙ Gillette is yet to invent safety razors

◙ It is still hard to beat the summer heat coz air conditioner is not a thing yet

◙ Wilbur and Orville Wright are still at their bicycle shop, dreaming and attempting to build the first human flight

◙ There are no cornflakes or teabags yet

The year is 1899.

And Charles H. Duell, the Commissioner of US patent office announced to the world:

“Everything that can be invented has been invented!”
.
.
.

The year is 2020.

Everyone: “Where is the vaccine for COVID!!!”