>>4168531Good take, and to add to it:
You can have a totally different reason for the use of a specific technique, and if your reason is unique then to some degree your originality is true originality. For example, in my specific specialty of photography there is an emerging behavior of not touching your subject to pose it for a photograph; you could choose this because you like the look of a relaxed, undisturbed subject, because you just find it ethically not acceptable to touch or disturb your subject, because you can't touch or disturb your subject, ad infinitum, and any new reason (at least imo) makes a new original iteration of the technique. picrel, in situ petrified wood.
Likewise, if you've genuinely never known of a technique before, and you do it, but you learn later that someone else did it, that's still original in some sense, but it's a little softer originality; your iteration of the idea really did originate with you, but the idea as a whole didn't.
Kinda pointless arguments around originality, but if you just want to be conceptually original, you honestly can just reinvent the wheel...