Sir Roger Penrose is a British mathematician and relativist who in the 1960s calculated many of the basic features of black holes.
In 1969, with Stephen Hawking, Penrose proved that all matter within a black hole collapses to a singularity, a geometric point in space where mass is compressed to infinite density and zero volume. Penrose also developed a method of mapping the regions of space-time surrounding a black hole.
Penrose became interested in the problem of defining consciousness and wrote two books in which he argued that quantum mechanics is needed to explain the conscious mind
Penrose Institute (amazing website)