be not rocket science

be not rocket science

To not be a pursuit, activity, or endeavor that requires extraordinary skill or intelligence. Look, all you need to do is reformat the hard drive on your computer. It isn't rocket science! Sure, it took a little bit of time to figure out, but reinstalling the modem wasn't rocket science or anything.
See also: not, rocket, science

not rocket science

If you say that something isn't rocket science, you mean that it is easy or obvious. It isn't rocket science to figure out that you will sell more sweets if you put them where small children will see them. People should be able to fill in the forms themselves — this isn't rocket science. Note: You can use expressions such as it doesn't take or you don't have to be a rocket scientist to point out that something is very easy or obvious. It doesn't take a rocket scientist to figure out why he's so angry. You don't have to be a rocket scientist to work it out. Note: The expression rocket scientist, meaning `very clever person', is used in various other structures. Now I'm no rocket scientist, but even I could see those figures looked way too high.
See also: not, rocket, science