When Bitcoin becomes mainstream, it will be a massive boost to the economy

One of the biggest reasons Bitcoin will be massively beneficial to the economy is because it will eventually offer a safe and reliable way for most people to store their wealth, allowing most people to stop needing to store it in stocks, real estate, and government debt. This will make people far more resilient during market downturns, in turn making market downturns shorter and milder, it will make the stock market more efficient as you shed all the dumb money, it will make housing more affordable, and it will make rampant government spending far more difficult to finance as both debt and seigniorage become more difficult ways for governments to suck money out of the people.