Racism is predictable. It's predicted by interaction or lack thereof with people unlike you, people of other races.
I think there's space in the market for a half-dozen kind of polling analysts.
People still don't appreciate how ephemeral success is.
You get steely nerves playing poker.
Walk rate is probably the area in which a pitcher has the most room to improve, but a rate that high is tough to overcome.
People don't have a good intuitive sense of how to weigh new information in light of what they already know. They tend to overrate it.