The Pleasure of Finding Things Out

[Foreword]
"I did love the man this side idolatry as much as any," wrote Elizabethan dramatist Ben Johnson.

[Editor's Introduction]
Recently I was present at a lecture at Harvard University's venerable Jefferson Lab.

This is the edited transcript of an interview with Feynman made for the BBC television program Horizon in 1981, shown in the United States as an episode of Nova.

For a successful technology, reality must take precedence over public relations, for nature cannot be fooled.

You see, one thing is, I can live with the doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong. I have approximate answers and possible beliefs and different degrees of certainty about different things, but I'm not absolutely sure of anything and there are many things I don't know anything about, such as whether it means anything to ask why we're here.

I don't have to know an answer. I don't feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is as far as I can tell. It doesn't frighten me.

There is an infinite amount of crazy stuff, which, put another way, is the environment is actively, intensely unscientific. There is talk about telepathy still, altough it's dying out. There is faith-healing galore, all over. There is a whole religion of faith-healing. There's a miracle at Lourdes where healing goes on. Now, it might be true that astrology is right. It might be true that if you go to the dentist on the day that Mars is at right angles to Venus, that it is better than if you go on a different day. It might be true that you can be cured by the miracle of Lourdes. But if it is true, it ought to be investigated. Why? To improve it. If it is true then maybe we can find out if the stars do influence life; that we could make the system more powerful by investigating statistically, scientifically judging the evidence objectively, more carefully. If the healing process works at Lourdes, the question is, how far from the site of the miracle can the person, who is ill, stand? Have they in fact made a mistake and the back row is really not working? Or is it working so well that there is plenty of room for more people to be arranged near the place of the miracle? Or is it possible, as it is with the saints which have recently been created in the United States - there is a saint who has cured leukemia apparently indirectly - that ribbons that are touched to the sheet of the sick person (the ribbon having previously touched some relic of the saint) increase the cure of leukemia - the question is, is it gradually being diluted? You may laugh, but if you believe in the truth of the healing, than you are responsible to investigate it, to improve its efficiency and to make it satisfactory instead of cheating. For example, it may turn out that after a hundred touches it doesn't work anymore. Now it's also possible that the results of this investigation have other consequences, namely, that nothing is there.