Reversible programs run backward as easily as they run forward, saving energy in theory. After decades of research, they may ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Manu Prakash works on the world’s most urgent problems and seemingly frivolous questions at the same time. They add up to a ...

A new proof illuminates the hidden patterns that emerge when addition becomes impossible. The simplest ideas in mathematics can also be the most perplexing. Take addition. It’s a straightforward ...