you don't have to be a rocket scientist (to do something)

you don't have to be a rocket scientist (to do something)

One doesn't have to be particularly intelligent to be able to do or understand something. You don't have to be a rocket scientist to learn how to change the oil in your car. You don't have to be a rocket scientist to know that you have to unplug electrical equipment before you try to fix them.
See also: have, rocket, scientist

you don’t have to be a ˈrocket scientist (to do something)

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it doesn’t take a ˈrocket scientist (to do something)

used to emphasize that something is easy to understand: Of course this model sells more than the others — it’s the cheapest! It doesn’t take a rocket scientist to work that one out.
See also: have, rocket, scientist
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