Trung Phan@TrungTPhanSep 2

James Dyson is 79 and the keynote GOAT right now. Here’s his tight 7-minute (pretty convincing) pitch for the AI-powered CameraJet ($499) that brushes and flosses at same time. Problem: average person brushes 45 seconds (under recommended 2 mins). Flossing is “archaic” and “toothbrushing technology hasn’t changed in 40 years” The CameraJet solution: ▫️1mm camera that can identify plaque and find gaps between teeth (using 100k pixel macro lens) ▫️train ML algorithm on 500k mouth images to recognize plaque targets ▫️films while you brush using “gap optical targeting” ▫️dome-shape over camera so there’s visibility even as it sprays ▫️camera takes 28 images per second and operates slightly out of sequence of toothbrush motion (oscillating 58,000x a minute) ▫️water jet spray has to be conical shape so that it can remove all plaque (competitors use needle jet which don’t get full coverage) ▫️created a “proxy plaque” to test device ▫️anti-gravity water tank so there is the same water pressure at any angle you brush (competing water flossers don’t have this) ▫️video recording that rates brushing sessions and provides tutorials on how to improve brushing This would be overkill for most but we let it slide with Dyson: “[We] rethought oral care from first principles using vision, fluid dynamics, formulation science, connectivity and AI software to solve a problem that’s been accepted for far too long.” *** Link: https://youtu.be/IuP4jZOs4sY?si=l1qb2JSI8fV14YdM