Kardashev – the creator of the Kardashev’s scale of civilizations – has died at 87. Here is his last video, which I recorded in May 2019. He spoke about the possibility of SETI via wormholes.
Here’s his wikipedia page.
Kardashev – the creator of the Kardashev’s scale of civilizations – has died at 87. Here is his last video, which I recorded in May 2019. He spoke about the possibility of SETI via wormholes.
Here’s his wikipedia page.