Full is an overstatement but true, there are some phenomenons that escape our knowledge of physics at the moment. They are not big parts of the plot though, ex

Full is an overstatement but true, there are some phenomenons that escape our knowledge of physics at the moment. They are not big parts of the plot though, except for faster than light travel, which is necessary to write about a galatic civilization. Uplift for example is a hard sci concept that is too rarely evoked.