Bym
Even if the Chazon Ish read some medical books as a child he definitely didn’t read about advanced neuro surgery and from the way I heard the story he learned the procedure from a Tosafos or something.
Either way what value does science as a whole have? For a forum person who knows that today we are here tomorrow we are in olam haba who cares about scienc?! I wwon’t say it’s not interesting but it’s so not a big deal in life. Most people don’t know more than rudimentary science and it has no impact on their lives. You happen to be into science but it seems that you have allowed hobby or interest of yours to take over. I totally don’t see why you should care one way or another about chazal scientific knowledge. They weren’t scientists they were Torah sages. If I were to know for a fact that there are people today that know more science than they did it would mean nothing to me. It wouldn’t affect my respect for them. Like I mentioned earlier the greatness of chazal has nothing to do with science but rather with who they were as people and what they accomplished in Torah and avodas Hashem. And I’ll say something else. For someone on the level of chazal why would they even care about science? They were above science. They were able to do miracles and be mechayeh meisim. So why should they even care about science?