I have followed this guy since he became well known. He is truly amazing. This was not magic....
https://nypost.com/2020/09/02/david-blaines-ascension-balloon-stunt-propels-him-24400-feet-into-air/
https://nypost.com/2020/09/02/david-blaines-ascension-balloon-stunt-propels-him-24400-feet-into-air/