b. 1947
Gregory Chaitin is an Argentine-American mathematician and computer scientist known for his foundational contributions to algorithmic information theory. He is best known for discovering Chaitin's constant (Omega), a real number that encodes the halting probability of a universal Turing machine, and for extending Gödel's incompleteness theorems into the domain of information theory.
Co-founded algorithmic information theory (independently with Kolmogorov and Solomonoff)
Discovered Chaitin's constant (Omega), the halting probability
Proved information-theoretic versions of Gödel's incompleteness theorems
Authored 'Meta Math!' and 'The Unknowable', popularizing randomness in mathematics
Developed the concept of algorithmic randomness and its implications for formal systems