As the economist J.M. Keynes said: “The difficulty lies not so much in developing new ideas, as in escaping from the old ones. - Dave Trott

Less important points don’t add to the communication. They detract from the most important point. That’s what the single-minded proposition is all about.

France was about to fall to the Germans, and Neville Chamberlain was about to resign as Prime Minister of Great Britain. He called Winston Churchill and Lord Halifax into his office. He said, “Well, one of you two will have to replace me. Who’s it going to be?” Churchill wrote, “I knew no Englishman could ever say ‘Give it to me’. So whoever spoke first would be the loser. It was the longest 30 seconds of my life, but nothing would induce me to speak.” Eventually Halifax couldn’t bear it any longer. He cracked. He said, “Well, I suppose you’d better give it to Winston.” Churchill accepted, and became Prime Minister. Imagine the course of history if Churchill had spoken first.

According to the laws of aerodynamics the bumblebee can’t fly. But the bumblebee doesn’t know that, so it just carries on flying around.