No, they were not truly "new". The first "computer" was very different to what we have now. An actually novel idea was Einstein's General Relativity, but even

No, they were not truly "new". The first "computer" was very different to what we have now. An actually novel idea was Einstein's General Relativity, but even that built on top of Riemannian geometry, which built on top of other ideas. Another actually novel idea was the Copenhagen interpretation of Quantum Mechanics, and that needed Heisenberg to sit in a park and observe a person going under lights and then back into darkness. There are very few truly novel ideas in history, and even those built on top of other works.