https://steemit.com/ethereum/@tomshwom/ethereum-gas-how-it-works
1. Minimum gas is 21,000
2. Transactions can fail if you run out of gas before the transaction has been verified
3. You will get back your ETH but not the gas already spent
So any thing lower than 21000 gwei will fail, is that correct
DO NOT use 21000 gwei. Gwei and gas are two different concepts (although I do not understand fully). Gwei can usually be between 25-50 and that should be enough. If you put 21000 gwei and 21000 gas it will
cost you hundreds or 000s of dollars to send. To reiterate use 21000 gas and roughly 25 gwei that should get the job done
so if we enter 21000 gwei
what a big mistake and the loss we will get
I think the number 21000 is a benchmark, I was wrong..