If you haven't watched the previous updates, this probably won't be interesting so watch these first:
https://youtu.be/_lJ5rlnj1C0?si=WO2ROHhIiWdqAld6
https://youtu.be/skh0sCEOOS4?si=-9VTn9wYC4kQEAu2
FliteTest Thrust Tube Blog: https://www.flitetest.com/articles/edf-thrust-tubes-flite-tip
737 pic: https://aviationweek.com/