Fun fact, your puzzle today inspired me to teach my kids the Monty Hall problem. At first they were like, "What difference does it make?" But they seemed to understand when explained. Hope they remember it

SimpleStacker

science

[Not-so-daily puzzle] Two envelope puzzle

south_korea_ln

Wow, quite fascinating this is what got you a job inside Wall St.

You are right on this:

> The answer is not to switch because there is no new information gained when looking inside the envelope.

but it makes me wonder how many Stackers know about the Monty Hall problem. I never posted it as I assumed everyone has heard of it at some point. There, the `new information being gained` condition is harder to assess...