However, Xu Chuan had experience in dealing with this kind of thing, so he was not panicked or excited. In addition, because he was invited by Princeton University to give an academic report, he flew in first class, which was not crowded and was quite comfortable along the way.

relaxing.

But when talking about this, Xu Chuan remembered another thing.

His good friend in his previous life was a mathematics professor at Princeton, because he studied algebraic geometry, and in algebraic geometry, there is a method of studying geometric structures, which can be called geometric blasting, which is to extend a certain plane or space in all directions.

This method is a bit like enlarging a picture, zooming in, zooming in, and then zooming in again.

Then that day when he was calculating geometric equations on the plane, he was too focused and a little slovenly. Then the lady sitting next to him saw the word "blowing up" written on the manuscript paper and suspected him of being a terrorist, thinking that he was calculating and researching some kind of explosive.

Then reported it to the air police.

Immediately after the plane returned, he was taken away for investigation. He returned to the plane and took off two hours later...

Later, when he and Xu Chuan were chatting about this incident, he sighed a little, saying that if you don't have a lot of money abroad, you should try to choose first class when flying, and go to higher-end places for meals and accommodation.

Because the weighting of money will naturally filter out the lowlifes around you and avoid unnecessary trouble.

There is no doubt that the current polarization in the United States has become so severe that it can be said to be two completely different countries.

The people at the bottom rely on calculators to calculate two-digit addition, subtraction and multipliers, while the top mathematical circles account for more than half of the world's mathematical elites.
Chapter completed!