The skills that we have are the actual magic skills - not the performing skills. We have to separate those. But the actual skills that make the tricks work, we don't get to use again.
Fashion designing involves a lot of work, and, as opposed to the general perception, it is different from costume designing for films. While a fashion designer can take up a costume designer's role, it is not possible vice versa.
I am really not a speedcuber. My best time when I was practicing was about a minute. Usually people say if you can create a piano, you must be a good piano player, but it is not true. They are different type of human activities and need different capabilities.
A good writer is not, per se, a good book critic. No more so than a good drunk is automatically a good bartender.
I guess at a certain point you think, well, singing is singing and acting is acting.
I like to dance, but I'm not a dancer.
I've played football with George Best, the greatest footballer that ever lived. That doesn't make me a footballer. And I've sung a duet with Pavarotti. That doesn't make me an opera singer. I can write and I have a story to tell, but I'm not going to make a career out of it.
You can be a mason and build 50 buildings, but it doesn't mean you can design one.