Get the domain knowledge through brute force,research,personal projects and determination. Even if it takes years. If you truly have passion it shouldn't be an

Get the domain knowledge through brute force,research,personal projects and determination. Even if it takes years. If you truly have passion it shouldn't be an issue. If you want to talk to people smarter than you then cold email them but make sure you always have something to "give" in the emails.If you don't, you will look like a leech.Read "How to win friends and influence people".