Why 120 years? It is easily parallelized, and with any cloud provider you can launch hundreds of thousands of computing unit in seconds. I'd say, as a private c

Why 120 years? It is easily parallelized, and with any cloud provider you can launch hundreds of thousands of computing unit in seconds. I'd say, as a private citizen, I can create a rainbow table of the IPv4 space in half a day, more or less?