Justin here. I ran across this great (short) video from Roger Ibbotson (the unofficial father of market research) about asset allocation, starting points, and diversification. At JSCO, we talk a lot with clients about how much an investor’s return depends on valuations when they start. Investing last year when all valuations were low was a no-brainer. Investing today, when valuations are inflated, takes a bit more precision (throwing darts at the WSJ won’t do.) Ibbotson brings up a good point when he mentions bonds’ relative historical starting point.