What I thought about while going to the shopping mall to buy a sweater

Get out of the car.Walk from the parking lot into the mall.Get on the escalator.Switch to another escalator.Walk down the corridor.Arrive at the store I was looking for.Wander around searching for the right section.Pay at the register.Walk back to the parking lot.Wander around, having forgotten where I parked.Get in the car.

The winding route I just walked—how many kilometers would it be, in a straight line?

The winding route that the food I eattravels through inside my body—how many kilometers would that be, in a straight line?