There's also the fact that the more often you look at your portfolio, the less likely you are to see it go up (assuming typical returns and volatility). Somethi

There's also the fact that the more often you look at your portfolio, the less likely you are to see it go up (assuming typical returns and volatility). Something like ~51% if you look at it every hour vs ~70% if you look every month. Taleb uses that example in Fooled by Randomness.