The number one rule in magic is “never give away your secrets, never tell them how it’s done.”
While Penn & Teller may disagree with the premise (seeing how they’ve built their entire career off of revealing their own and other magicians’ secrets in their act), the concept is still valid. Half the fun of seeing a high-quality magic act is the suspension of disbelief that the audience can have for those two hours.
Standing on a pole in the middle of a park isn’t “magic” in the traditional sense. There is no hidden trick, no amount of misdirection can alleviate the amount of effort it can take to stand still for hours on end… with or without a supportive device to lean on at times. Not saying that David Blaine used something like that — but Web Watch would if we were forced into doing that type of stunt ourselves.