Imagine waking up one morning and realize that, for some reason, you can't or don't want to follow that path anymore. And start this process all over again!
I don't think you would "start over", since the idea here is that you are proving to the community at large that you competant and can product results. Building a reputation is more about showing people what you are capable of doing, but you just happen to be focusing on some specific area for now.
Adrian's comment highlights that you can pivot if that's something you want to do!
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