Wrote a little program that tests your reflexes, it takes the average of 10 tests. People who game regularly, especially FPS tend to have measurably faster reflexes. it's limited by hardware latency so its data is objective within tests done on one machine (if anyone has any practical tips on how to resolve measurement with hardware latency I'd welcome it)

https://drive.google.com/file/d/1C3yqOimQOmWs-i6NT155HmoVGpSorirt/view?usp=sharing