Yes, but those slopes are indeterminate from an outside observer because success comes from within. For every person you think you might have pigeon-holed, I'll show you another that broke the mold. You see everyone starts off facing a metaphorical vertical cliff in anything they attempt. It's over time that you learn the passages and tools that make it easier to climb; that lessen the slope. Unless we're talking about physically dunking a basketball, anyone can be a savant in something with enough effort. But again that future effort is not knowable to a 3rd party, they can only base opinions on past observations. People can change and they can change in an instant.