One of the three appears to have a Google affiliation, another one a Facebook affiliation. Google sponsors the Turing Award: https://awards.acm.org/sponsors h

One of the three appears to have a Google affiliation, another one a Facebook affiliation. Google sponsors the Turing Award: https://awards.acm.org/sponsors https://awards.acm.org/sponsors I don't know who is right, but Schmidhuber certainly comes across as someone who is interested in an accurate history. For example the backpropagation algorithm is often misattributed. After the Perelman story my faith in proper attribution in science is fairly low in general.