Griid Infrastructure is in talks to go public through a merger with a special purpose acquisition company, according to people with knowledge of the matter. A transaction with Adit EdTech Acquisition Corp. (NYSE:ADEX)?would value the combined entity at more than $3 billion, one of the people said. Terms aren?t finalized and talks could still fall apart. Spokespeople for Adit EdTech and Griid declined to comment.