I'm talking about the TV show, not the well-known theory in physics.
"The Big Bang Theory" is just fake "Malcolm in the Middle." They even have theme music by Barenaked Ladies, who are the fake They Might Be Giants, who made the theme music for "Malcolm in the Middle." "Malcolm" is made by and about authentic geniuses, including TMBG; TBBT is made by fake geniuses, and its characters are crude stereotypes of geniuses, just as BNL are crude imitations of nerds, and specifically, crude, inept imitations of TMBG. TMBG, besides being geniuses, are too nice to call BNL on this. I'm not.
The repeated guest appearances by Neil deGrasse Tyson and Stephen Hawking on TBBT do not refute my thesis; instead they show 1) that quality sitcoms are not Tyson's or Hawking's area of expertise, and 2) how desperate the producers of TBBT are to demonstrate (to themselves most of all) that they are really smart.
The presence of scientist and actual smart person Mayim Bialik in the cast (in a role as stereotypical and tired as the rest) does not refute my thesis. Let's see what you or I would do if offered that much money (reportedly Bialik receives half a million dollars per episode currently) after several years' worth of slowed-down career.