No one can resist the idea of a crippled genius.
The universe does not behave according to our pre-conceived ideas. It continues to surprise us.
Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention.
It often happens that I have an idea, but then I try to fill in the intermediate steps and find they don't work, so I have to give it up.
The rate of progress is so rapid that what one learns at school or university is always a bit out of date. Only a few people can keep up with the rapidly advancing frontier of knowledge, and they have to devote their whole time to it and specialize in a small area. The rest of the population has little idea of the advances that are being made or the excitement they are generating.
The idea of 10 dimensions might sound exciting, but they would cause real problems if you forget where you parked your car.
This required abandoning the idea that there is a universal quantity called time that all clocks measure. Instead, everyone would have his own personal time. The clocks of two people would agree if they were at rest with respect to each other but not if they were moving. This has been confirmed by a number of experiments, including one in which an extremely accurate timepiece was flown around the world and then compared with one that had stayed in place. If you wanted to live longer, you could keep flying to the east so the speed of the plane added to the earth
The idea that we are alone in the universe seems to me completely implausible and arrogant, considering the number of planets and stars that we know exist, it's extremely unlikely that we are the only form of evolved life.
There is no prescribed route to follow to arrive at a new idea. You have to make the intuitive leap.
I'm a child myself, in the sense that I'm still looking. Children are fascinated by black holes and ask me questions. I find they soon get the idea if it is explained in nontechnical language.