We all make mistakes and some of us learn from them. What is even better is to learn from other people’s mistakes, where they pay while we learn free of charge.

Many Americans who say that we should learn from other people, especially Europeans, mean that we should imitate what they did. That may make those who talk this way feel superior to other Americans. But let us never forget that the most disastrous ideologies of the 20th century — Communism, Fascism and Nazism — all originated in Europe. So did both World Wars.

More recently, Europe has been belatedly discovering how unbelievably stupid it was to import millions of people from cultures that despise Western values, and which often promote hatred toward Western people.

Maybe that is a mistake that we can think about when Congress finally decides to do something about our open borders and our immigration laws that we refuse to enforce.

European anti-trust regulators are giving us another free lesson in confused thinking by filing anti-trust charges against Google, on grounds that its searching facilities give preferential treatment to Google’s own searching services over other competing searching services.

The European Union’s commissioner for competition explained the basis for the complaint against Google: “We have a focus on a certain conduct, a certain behavior which, if our doubts are going to be proven, we would like to change because we believe that it hampers competition.”

The history of American anti-trust law shows too many similar vague and confused notions masquerading as law. The idea that the accused must prove their innocence, under the “rebuttable presumptions” of the Robinson-Patman Act of 1936, was a forerunner of the same mindset under later “disparate impact” theories in civil rights law.

What such fancy words boil down to is that very little evidence is required to shift the burden of proof to the accused, in defiance of centuries-old legal traditions that the accuser has the burden of proof in criminal cases and the plaintiffs have the burden of proof in civil cases. Otherwise, any fact or theory that sounds plausible to legal authorities is enough to force the accused to prove a negative or lose the case.

Such violations of the legal standards used in most other cases are usually inflicted on those who have already been demonized and whose guilt has been assumed and punishment is fervently desired, such as big business, employers accused of discrimination or men accused of rape.

The whole point of competition in the market is to create economic efficiency which, by its very nature, means eliminating the less efficient producers. Confusion about the difference between maintaining competition and maintaining competitors has long plagued anti-trust law on both sides of the Atlantic. But Americans seem in recent years to be recognizing the difference.

In Europe, there still seems to be a notion that big companies with many customers should help their smaller competitors survive — especially if the big companies are American and the smaller companies are European.