Buy & Sell v Buy & Hold; Shares v ETFs; Focus v Diversification; Leverage v Unleveraged

The central problem of investing is how to make money when we cannot predict the future. We can have faith like Michael Saylor for whom Bitcoin has become a kind of religion. We can nail our colours to the mast as many entrepreneurs do with the businesses they have founded. We can hedge our bets as most professional advisers would tell us to do with their mantras about diversification. We can try to time our investments but that brings us back to the problem of our inability to predict the future.