It's not sufficient itself to maintain the chain. Also, it was a little confusing when he was talking about randomly picking red an blue. In the real system, it's not random.
There's a True correct choice, the real 1st seen TX, & it's very unlikely a double spend attempt will win the metastable race. So once you see your TX accepted by avalanche
You can trust more that it is the one that will end up on the block chain. This made me feel better about Avalanche as I was a bit skeptical before.
