At present, superstring theory is very immature, mainly because it has not made any verifiable predictions and its theoretical calculation is not perfect (because it is too difficult ...)

Other theories, such as standard particle model, wide phase and narrow phase, and quantum field theory, are all advanced in this field, but they are far from the grand unified theory.

This knowledge is too difficult for high school students. I suggest reading general popular science books (such as A Brief History of Time), or starting from the basis of advanced mathematics and modern physics, step by step (I don't think more than 1% of high school students can do this).

The study of physics is a very difficult process, especially the most basic physics. Every student who wants to learn modern physics well must master (at least) five mathematics courses: advanced mathematics, advanced linear algebra, complex variable function, mathematical physical equations and probability theory. If you don't learn these three courses well, then the deepest frontier knowledge of physics that you can come into contact with is just some mentioned in popular science books, and Baidu will be finished in one go.

It is very difficult for a graduate student to learn these three mathematics well, so

Young people, just watch popular science. Great ideals should be pursued until you have the ability. Don't chew on some big books that have no foundation. Just wasting your precious life and pretending to be a b ~

Of course, if (I hope) you really have amazing bones and great potential, you really want to change the world in the future and become the greatest physicist in China history. ........

Advanced Mathematics (Tongji)-Linear Algebra (China University of Science and Technology)-Advanced Linear Algebra (Zhang Xianke)-Complex Variable Function (Complex Analysis (Third Edition of the Original Book), (USA) Lars V.Ahlfors)- Mathematical physics methods (many of which are good)-Probability theory (I don't understand).

Physics: A set of lectures on physics in Fei Enman. After that, you can look at Landau's physics textbook series, and then you can start further study.

If you just want to observe profound theories instead of learning step by step, Netease has an open class of string theory, so you can't stick to two intuitive classes.

But after reading a lot of math, it should not be so difficult (just not so difficult, it is still very difficult)