Mitch Halley
American YouTuber and critic
Mitch Halley (born 1990), known online as jan Misali, is an American YouTuber, critic, musician, singer, songwriter and recreational mathematician. The name jan Misali comes from Halley's name in Toki Pona, a language Halley speaks along with English. Halley's work includes Conlang Critic, and the YouTube channel 
hbmmaster had about 350,000 subscribers in December 2025.
Mitch Halley’s social media accounts
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