That’s merely conjecture on my part. The two are quite different based on their descriptions. The Vedic Vishnu is described as a fierce warrior, like Varaha, a

That’s merely conjecture on my part. The two are quite different based on their descriptions. The Vedic Vishnu is described as a fierce warrior, like Varaha, a wild boar. Krishna is way more calm, reasonable, and shall we say crafty. The two also represent the shift from a hunter-gatherer society to a more agrarian based society. Technically both Vishnu and Krishna are relatives, since they both descend from Kashyap, so I could see why his contemporaries saw him as the reincarnation of Vishnu.