Now to be clear, 20 years after the jury announced its June 1995 not-guilty verdict in Simpson’s criminal trial, white and black opinion on this matter remains pretty divided. A full 83 percent of white Americans said that they are “definitely” or “probably” sure of Simpson’s guilt. By contrast, 57 percent of black Americans agreed.

But what’s noteworthy here is that both figures have reached an all-time high and are moving in the same direction, despite two successive summers in which questions of possible police misconduct and systemic racial disparities in the criminal justice system — issues very real in the Simpson case — have occupied the headlines.