Newtonian level of insight into fitness is super easy. (With Newtonian I mean enough true to get the work done, even if there is a higher level of truth underne

Newtonian level of insight into fitness is super easy. (With Newtonian I mean enough true to get the work done, even if there is a higher level of truth underneath, i.e Einsteinian physics, quantum physics) Weight delta = calories in - calories out Health preservation requires adequate levels of protein (muscles) and fat (hormones) Muscle growth requires caloric surplus, adequate protein availability and muscle breaks Muscle breaking requires progressive overloading of muscles (i.e. do more/harder of the thing you want to get better at over time) Micronutrients is a thing, so eat a balanced diet or take supplements. With those five things, 99% of people can do anything they need around fitness. Wearable fitness does very little for those five things. Gathering data to further the development of Einsteinian level of insights is interesting - fitness certainly lags behind there, but I dont think any big breakthroughs in fitness will come from that, in the same way that Einsteinian physics didnt change how we build bridges or pipes. The less sexy but much more interesting point is on changing behaviours around those five things. How do you design technology to change habits? It is possible to change habits with technology. The obvious example is how mobile phones changed habits, for instance in how we make appointments, navigate and a multitude of other ways. Cracking how wearable fitness can change those is a much more valuable challenge in my view. Can we design wearable fitness that lets you exercise wherever you are? Tap your fitness device and you're sent to the nearest gym, with a change of clothes and towels etc ready in a locker for you, and the device reading off your exercise plan? Tap it to get your personalized meal prepared for you at your nearest participating restaurant, or a shopping bag sent home to you. That's where I see the future being for fitness technology - we know the right things to do, they are just awkward to do, so lower the barrier to doing the right things.