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Feel happy! Eyesight uses saccades. Flashing is better.
https://www.londoncyclist.co.uk/raf-pilot-teach-cyclists/
Cyclists and motorcyclists:
Recognise the risk of being in a saccade. High contrast clothing and lights help. In particular, flashing LED’s (front and rear) are especially effective for cyclists as they create contrast and the on-off flashing attracts the peripheral vision in the same manner that movement does. There’s nothing wrong with leaving these on during the day. (Especially if they are rechargeable)
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Also, your perception of time changes during/after saccade movements. If you ever look at a clock and think it's felt like longer than a second for the hand to move that's because for your brain it has.
https://www.sciencedirect.com/science/article/pii/S0960982202007078
I thought a steady state was better from a driver's POV but happy to be corrected.