>>>>But I'm wondering if Sergey can admit it was not the simplest solution.
>>>
>>>I'm sure he can. OTOH, very many solutions provided here are not the simplest. That's what I like about the UT: others react and provide additional learning experiences.
>>
>>Most people have very hard time admitting they were wrong or not entirely correct. Their pride or arrogance don't let them. And it's unfortunate we have this case here as well.
>
>What should Sergey admit?
>- Wrong in this case?
>- Not entirely correct in this case?
>
>And are you suggesting he hasn't yet done so because
>- Sergey is proud?
>- Sergey is arrogant?
>- Sergey is proud and arrogant?
>
>I'd say, give him a break. He provided a solution, others provided a somewhat better solution and there's no rule here that requires he apologizes for his solution.

No a rule, but just a common courtesy, I'd say.

He's not a doctor who prescribed the wrong medicine. We are essentially all volunteers here.
>
>Having said that, it's good to reach a state that gurus too are perceived as normal and fallible humans.

Yes, that's important. Somehow we expect too much from gurus and percieve them in a wrong light.