You become an expert by spending absurd amounts of time on something practicing it and having a specific set of additional characteristics that help you get to

You become an expert by spending absurd amounts of time on something practicing it and having a specific set of additional characteristics that help you get to that level like excellent memory, excellent analytical thinking, excellent ppl skills. A real expert is extremely rare to find. Ppl who think and present themselves as experts in the field is plently. You will know you met a real expert when you talk to them long enough. Ive met few, the knowledge difference was a canyon the approach to solving problems was superb. I try to keep contact with those ppl coz out of few hundred devs I met I considered only 3-5 a real expert.