Today, a few clicks lets you buy stocks anywhere. With the world's stocks on every menu, investors' have collectively allocated capital according to the cartogram. Yet individually, investors greatly prefer domestic portfolios.

"On a daily basis, the S&P 500 trades at an all-time high 7% of the time and trades within 5% of an all-time high 36% of the time. This means that on 43% of all days, since the S&P 500’s inception, US large cap stocks were at or close to making new records. Anyone who tells you that new highs are abnormal or a reason to sell is a fool."