On buggy-rolling : "When your nose is less than 10 cm from the ground, at 60 or 70 km/h,

the speed sensation is boosted. pedestrian are giant! 17 time higher. Dogs are monster. Pavement are crevasses. if the floor is bumpy, you are shaked in every sens, you must be full concentrated on your trajectory, seem to touch the floor every five meters."

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