The death race riddle.

The night before the Death Race across the Wastelands is set to begin, your uncle, the great inventor Slate Kanoli, got kidnapped by the ruthless No-Side gang. The only way to get him back is to race his Coil Runner against the gang yourself. Win and they'll give back your uncle. Lose and you'll forfeit the Coil Runner and all his other creations. Can you win the race? Alex Gendler shows how.

Answer the following questions:

1. Why can't we assume the cause from an observed effect?

2. What does the first run tell us about the Helium tank?

3. How do we know that the glowing fuel gauge is caused by two factors independently?

Record a 1 minute video recommending this pill.