Question

Close one eye. Hold an ink pen in one hand and the pen’s cap in the other hand

Answer 1

Answer:

because if you do that with one eye it looks like you will get it but it is really of its just

Explanation:

Answer 2

Answer:

We need two eyes to form a 3d depiction of the environment.

Explanation:

With Only One eye, You dont have a 3d rendition, Its a 2d rendition where the pen and the cap looks to be on a 2D plane, ie their path seems to add up Since we dont have the other eye to measure depth ie the distance away from the pen's plane to the cap.