Lmao, no it isn’t. At best, it’s made for people who are lightly into space/science and also lightly into cinema, so please don’t trot out the “you need a high IQ to enjoy this movie” stuff. If it were made for space nerds, two scientists selected for deep space flight wouldn’t need to stop and explain what E=MC² is to one another.
That’s kind of always been Nolan’s schtick, though, and I guess it’s working out for him because he’s got the a huge, quite passionate fan base. I’ll never understand the hype and find his movies quite mid as cinema, but eh.