@bontchev @GossiTheDog Using a calculator does not harm your mathematical reasoning or your accuracy with doing the math in your head. It just leaves you out of practice so you take longer. That is practice, which is not the same type of learning as reasoning & thinking. Here they show the harm AI causes to reasoning & thinking ability & motivation. Real time taken to answer a math problem was not measured as part of the study. See the experiment methods & both the control & variable conditions.