TED-Ed: Can you solve the multiverse rescue mission riddle? - Daniel Finkel

A team is trapped in eleven pocket dimensions due to a system bug. They have an experimental teleportation robot with two levers and a button, which can teleport randomly between dimensions. The challenge is to ensure everyone pulls a lever before pressing the button to return home. Communication is limited once the robot arrives, so a plan is devised where one person counts visits using the left lever. Once all have been visited, the button is pressed to bring everyone back. The plan is successful, though it may take many teleportations.

What is the main challenge faced by the team trapped in pocket dimensions?

• Finding a way to communicate with each other.

• Ensuring everyone pulls a lever before pressing the button.

• Locating the missing dimensions.

• Repairing the teleportation robot.

Why can't the team use the robot's levers to communicate who has been visited?

• The levers reset automatically after each teleportation.

• There are too few lever combinations to track all team members.

• The robot's teleportation technology disrupts communication.

• The levers are too fragile to be used frequently.

What role does the designated person play in the plan?

• They are responsible for resetting the right lever.

• They decide the order of teleportation.

• They track the number of visits using the left lever.

• They communicate with the team using the robot.

How does the designated person know when to press the button?

• When they receive a signal from the team.

• When the robot visits them with the left lever down ten times.

• When the robot visits them with the right lever down ten times.

• When the robot stops teleporting.

What is the expected number of teleportations needed for the plan to succeed?

• Around 355 times.

• Around 200 times.

• Around 100 times.

• Around 500 times.