Well depends, I think some industries just are fake in general,

Chiropractors, stock traders that aren’t using insider information etc…

But otherwise I suppose it’s just how you are “faking it”. In IT the obvious joke is that we always just google everything. But at the end of the day that gets you better at knowing what to google, and over time you’ll memorize most of it. and it’s almost impossible not to start gradually learning the connections of how and why things work.