I haven't watched the video so Im just gonna touch what I understood from the topic title. I doubt limited supplies lead to death but rather loss of importance is the one that leads to death. Look at the countless altcoins that are released. Not all of them are being used even though they have a lot of supply available, most of them are still dying off. Importance is the one that leads to a coin being circulated in the market, and I doubt bitcoin would die cause of limited supply.