"recent science applied allready"
Most scientific discoveries take a long time to make it to the general public. In the case of mathematics this is even more visible, people applying mathematics in real life, usually hear the names from antiquity to the renaissance, but seldom the names of people of the twenty century.
Computer science is a recent science, and here we hear about people that can have existed in our lifetime who changed the world with science and technology.
I was surprised to find out that the architecture of our computers has been thought out so recently. (Which actually shows me how little I thought about the subject) And that for the pioneers of the forties, the choices aren't as evident as they appear to be now.
Recent history can seem so distant when you take things for granted.