I assume "fooled" means "can't figure out the method".
Yes, I think personally Eric Mead's 90/10 rule applies much of the time. When a layperson or beginner in magic sees a trick and 90% of it fools them but they catch on to about 10% of the trick they will say they are not fooled. Magicians tend to be the opposite. When they understand 90% of the trick but do not understand a small sliver then they will consider themselves fooled.
I don't know when the change happens but I remember leaving a magic show about 15 years ago feeling like I knew every trick. I now know much more about magic than I ever have (my current job requires it) but when I look back at that same magic show, I think I would say that I was fooled on some level by just about everything.
I have been involved in magic for over 30 years and still get fooled, and I love it. I am fortunate to have some amazing friends in magic that I can count on to stump me and bring back that amazement from when I was a child. I know a lot of card and coin magic, but I refuse to learn any stage illusions as I love the wonderment that big illusions can bring to me.
I absolutely LOVE LOVE LOVE being fooled nowadays. Being 20 years into magic, conventions, IBM ring, etc. it exposes you to so much; however, there is such a plethora of magic out in the world that it is still quite possible to go back to being a young child and get that goosebump feeling and sense of wonder. I don't always even want to know the method. I just like to walkway and smile...and hang on to that feeling.
Pretty much when I watch magic... especially card tricks... I am more focused on my material and creating a corporate magic bussines that I haven´t bought new magic in sometime and I get fooled easily and I always accept when I have no idea how its done...
Yeah, I feel the same! I've racked up 25ish years of magic knowledge and right now I feel like I am fooled as much as I ever have. I go to more magic shows, conventions, lectures than most magicians and I feel like I am constantly fooled.
I think a few things come into play here.
I think live magic plays much different than magic on video. If you haven't seen a solid live performance of magic then it's hard to imagine what the difference between magic on TV and live can be. I am fooled in a live setting all the time, by stuff that I am familiar with. Most of the time this stuff wouldn't fool me at all if I watched it on camera.
An example of this comes to mind from Magic Live this last year. A magician did a trick with the Psychomatic deck to me. He fooled me. Then he explained how it worked. I kicked myself because I had just spent some time jamming on this deck with Nathan Kranzo, the expert of all experts with the Psychomatic pack. In the live performance, my senses were easily overwhelmed and the sleight change of handling threw me off.
And, there is a lot of magic that just CAN'T be captured on video.
Another thing that comes to mind is that I feel like I see more magic than I ever have before and I see it on a daily basis. I find myself learning a ton, but when I have to research an Arnel Rengado or Mickael Chatelain their magic fools me all the time.
As I research and learn more I find that there are constantly new things to learn. About 10 years ago I discovered that there was a ton of mentalism that I knew nothing about. The same thing has happened with rubber band magic, escapes, or stage magic. In fact it gets more specific. Every once in a while I'll realize I'm missing a portion of magic knowledge. I'll see something like a rubber band link and realize, I know 4 ways to do this but I have no idea there were a 120!
The more I learn and search for magic the more I see my limitations and the more I see these limitations the more comfortable I am with these limitations.