For me, it started when I was nine and I saw World's Greatest Magic on TV. I'd always liked magic as a kid, having seen magic shows at friends birthday parties and what not but for some reason seeing magicians like Lance Burton, The Pendragons (their metamorphosis in particular), and Mac King just did it for me. However, my parents weren't very supportive of my interest in magic at first (they're quite proud of it now though) so I didn't really dive into learning it until I was 14. I remember being in a bookstore one day and finding Tarbell Course in Magic 1 & 2; I saved my money to buy them for myself for Christmas that year.
Then, I was introduced to theory11 by Zach (Mueller, needless to say) about six years later when we created Exposé; Zach and I were in the junior program at the Magic Castle together. Now, after many podcasts, TV shows, numerous episodes of Exposé, etc., I'm proud to still be part of the amazing theory11 family and continue to work on evolving my magic.