So this is pretty speculative, but I think Google already has similar models in production that they use for targeted advertisements. A few months ago I was ri

So this is pretty speculative, but I think Google already has similar models in production that they use for targeted advertisements. A few months ago I was riding my bike and fell down. A few hours later while looking at my Google Pixel I saw an advertisement for a nearby medical clinic. The ad was a guy on the ground holding his knee after a fall. It could be a coincidence, but I have never seen any similar ads before or after. It occurred to me that it wouldn’t be too difficult to build a fall classifier based on the phone’s accelerometer and gyroscope data.