This is pretty interesting. The cognitive-based game is not what I expected - https://www.researchgate.net/figure/The-smartstep-system-used-for-A-motor-cogniti

This is pretty interesting. The cognitive-based game is not what I expected - https://www.researchgate.net/figure/The-smartstep-system-used-for-A-motor-cognitive-training-and-B-cognitive-training_fig2_334943421 https://www.researchgate.net/figure/The-smartstep-system-use... (Which they say didn't work) Video of the smart±step https://www.youtube.com/watch?v=HKQxzJDiTX4 https://www.youtube.com/watch?v=HKQxzJDiTX4 which looks very boring but there seems to be other videos of walking through a village? This is the hard bit - "2 hours a week" But we have an old age problem. There is neither the skilled or unskilled labor to keep the homes running. Just having an activity that people can do for 2 hours a week is a sell. Throw in less falls, which will mean less labor, is a sell. Subsidies because it's medical. smart±step is not the only one around, it'd be interesting to see what stopping these being more ubiquitous. It's hard to tell if it actually works to stop falls, but the theory seem good.