415 Bitcoin & ETF

ETFs - discussion of how ETFs work. Why does a company advertise their ETF. How do they make money. Also, an explanation of NAV (net asset value).Bitcoin - More information on how it functions and why it will failEye glasses - $800 for a pair of glasses. NOPE! I shopped on-line and saved a ton of money.Also, Trump's hole in one and bonds and the yield curve (yield curve inversion).