A century in the past, it was attainable for a physicist to know nearly every thing there was to learn about physics. Now, that is removed from the case. It isn’t that the physicists of in the present day are much less competent. The issue is that people merely know a lot concerning the inside workings of the universe that it’s not possible for somebody to be deeply accustomed to all of it. In consequence, in the present day’s tendency is to provide specialists.
For instance, I educated initially as a relativist: common relativity and quantum extensions of it, utilized to cosmology, had been my specialist areas of physics. Ultimately,…