satoshi didn't creat blockchain, because blockchain was created 17 years before Bitcoin was born. and with name Time-stamp. time-stamp was created in 1991 by Stuart Haber and W. Scott Stornetta. but not adopted en masse. because it has a common problem of byzantium. and in 2008 satoshi solved this problem with alternative solutions. namely through proof-of-work created by Satoshi, then Bitcoin was born as a verification tool on the blockchain. so make no mistake. satoshi is not creator of the blockchain. but only perfecting time-stamps (now blockchain) that have common problems and solve them with bitcoin.
That makes little difference. If Satoshi Nakamoto upgraded the blockchain to its current form and created Bitcoin, it will nevertheless be considered the creator of both Bitcoin and blockchain technology. In our world, almost all ingenious ideas are not born from scratch, certain developments must exist before this and be preceded by the appearance of such an idea. Even now we know the general achievements of inventions that will be applied in the future. For example, it is predicted that humanity will soon launch in the near-earth orbit daa artificial suns that will constantly illuminate our planet. It will be a ball, approximately six meters in diameter, in which approximately the same nuclear reaction will take place, which is now taking place in the sun. However, only he will be considered its inventor who implements this in practice.