Probably not. But I'm fairly sure I've had an original perspective of that thought. If only because I doubt anyone can completely mirror the mental processes, influences, and specific life experiences that allowed to me arrive at that thought.
"I took the one less traveled by,
And that has made all the difference."
I always think i have some really original ideas, but then i google them, and someone else already had that idea.
I couldn't imagine one of my ideas being on the internet, but I'm sure some person has thought of it and couldn't express it. With other ideas, there were likely a few commonalities to show for, but most of those they are just me and what I think about. I would never try to apply these things to the real world.
All the time, when it was my hobby. The ideas concerned something exact. If you were to generalize, you'd find that somebody had already applied some mathematics to some computer thingy in our universe some time before, so it wan't original ..
I'd be correct in saying that no-one had thought of applying a certain advanced error correcting scheme in a certain way to computer media, but my original idea wouldn't be any more significant than a day of work from an engineer. Original, yes.. how significant? Perhaps not very significant at all.
IMHO, useful, original thoughts are rather easy to come by, given the right education about the subject. If you wouldn't know the state of the art, the most advanced knowledge in any domain, you'd only come up with ideas already taken, or useless ideas.
The real question lies in, how useful? At least, that can be evaluated. I fail there, giving me the sense that "originality of an idea" only covers one aspect of the whole.
Since our environment and lifestyle is always changing, the opportunity for original thought is almost limitless. The more stagnant a society is, the less chance there is for original thought.
For instance, when the video camera was invented, every thought associated with it couldn't have taken place before it was invented, so originality was, and still kind of is, easy when it comes to video recording. The same with the internet, advanced medicine, neuropsychology, death metal etc.
When I was a kid, I dreamt that 'super-charging' an NaCl particle while suspending it inside of a semi-transparent liquid of some sort would propel the particle into faster-than-light travel while the liquid absorbed the energy output from the reaction.