Here's how you tell something is a #bubble. With literally any other #corporate #investment, such as #stock, investors demand that you *increase #profit* year over year, quarter after quarter -- or they're out. When it's a bubble, that same investor class will buy, and buy, and hold, and buy, and buy, after year after year of negative #profitability. And they will keep putting in more. The only time #investors are ever #long is when it's a bubble. #ai