Three artificial intelligence companies that operate on blockchain are in talks to merge their crypto tokens, a move aimed at helping them develop a decentralized AI platform. SingularityNET, Fetch.ai and Ocean Protocol are discussing merging their tokens into an ASI token that would have a fully diluted value of about $7.5 billion, according to people familiar with the matter. The deal, which could be announced as soon as Wednesday, would hinge on approval from the members of each community, sa...