Sorry if this one has already been posted, but no results came up in my search.

There is a predictor that predicts the likelihood of events with %100 accuracy.

Today, you are presented with two boxes. You may open only Box B, or you may open both boxes.

Box A contains $1000.

Box B may or may not contain $1,000,000, depending on what the predictor predicted you would do.

It made this prediction yesterday.

If it predicted you would only open Box B, it has placed $1,000,000 in Box B.

If if predicted you would open both boxes, then Box B is empty.

Should you open both boxes, or only Box B?

At first glance, it seems that opening only Box B is the best answer. Though I believe this, there is also an argument for opening both boxes:

The amount of money in the boxes isn't going to change now. It is a previously set amount. If you open Box B and it contains $1,000,000, wouldn't it be sensible to open Box A in order to gain $1000 more?

Of course, the predictor has predicted this course of action, so Box B contains no money. You should open Box A so you at least have $1000. Then again, if you just open Box B, it should contain $1,000,000. Right?

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Sorry if this one has already been posted, but no results came up in my search.

There is a predictor that predicts the likelihood of events with %100 accuracy.

Today, you are presented with two boxes. You may open only Box B, or you may open both boxes.

Box A contains $1000.

Box B may or may not contain $1,000,000, depending on what the predictor predicted you would do.

It made this prediction

yesterday.If it predicted you would only open Box B, it has placed $1,000,000 in Box B.

If if predicted you would open both boxes, then Box B is empty.

Should you open both boxes, or only Box B?

At first glance, it seems that opening only Box B is the best answer. Though I believe this, there is also an argument for opening both boxes:

The amount of money in the boxes isn't going to change now. It is a previously set amount. If you open Box B and it contains $1,000,000, wouldn't it be sensible to open Box A in order to gain $1000 more?

Of course, the predictor has predicted this course of action, so Box B contains no money. You should open Box A so you at least have $1000. Then again, if you just open Box B, it should contain $1,000,000. Right?

Personally, I love this paradox. Enjoy.

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