On Thought Experiment

First, the researchers enlisted a group of about 50 people, who thought they were taking part in an experiment on size perception.

首先，研究员征募了一群大约50个人，他们[她们]认为他们正在大小知觉上参加实验。

This theory is the basis of a famous thought experiment known as the twin paradox, in which a twin sibling who travels on a fast-moving rocket ship would return home younger than the other twin.

这个理论基础来自于著名试验猜想，双胞胎悖论：乘坐高速火箭飞船旅行的双胞胎哥哥（或弟弟），回到家后要比他的弟弟（或哥哥）年轻。

And what's amazing about the argument is that it works on the basis of a pure thought experiment.

这个论证令人吃惊的就是，它完全只靠思想实验。