Public key cryptography was invented in the 70s, commercialized in the 80s. In machine learning we already had back-propagation in the 1970, but had to wait an

Public key cryptography was invented in the 70s, commercialized in the 80s. In machine learning we already had back-propagation in the 1970, but had to wait another 40 years for Intel and Nvidia to create ever more powerful processors to tackle useful problems.