[mironathetin]

"...and brake as hard as possible " I think braking hard is the beginning of all evil. Others behind will also have to brake hard and a whole bunch of cars comes to a standstill. Keep moving is key, which means: anticipate what will happen in front and react accordingly. This would also fit to the gas theory: as long as there is no shockwave (braking), things still flow. If things get denser in front of the car, move slower, as in a gas, but try not to stop.