There are three stages of truth. First, is that it can’t be true, and that’s what they said. You couldn’t immunize against polio with a killed-virus vaccine. Second phase, they say, “Well, if it’s true, it’s not very important.” And the third stage is, “Well, we’ve known it all along.” What you are describing is the process that you have to go through when you come up with an idea that has not yet been tried or tested. While it is true that this involves personalities, it also involves different ways of seeing. It was not a matter of a popularity contest, it was not a matter of anything other than that my curiosity drove me to find out whether it could work or not.