Who is Wei Dai?
The smallest unit of Ethereum, the wei, is generally believed to be named after Wei Dai. 1 ETH equals 10 to the 18th power wei.
Bitcoin didn't come out of nowhere: before Bitcoin, the cryptography community had already discussed various proposals for electronic cash.
The white paper for $BTC cites Wei Dai's b-money as its very first reference.
It's safer to start small and practice with a small amount when dealing with something unfamiliar.

#BTC

This is a personal opinion and is not a recommendation to buy or sell.