system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible to cold weld the repelling ends of magnets together? If so, would their magnetic fields align?
gpt
Magnetic fields are due to the spin of electrons within the magnet.  Placing two magnets together would not change the spin of the electrons, so the magnetic fields would not align.

However, over a long enough period of time, if you keep magnets near each other, the magnetic fields from one will affect the spin of the electrons in the other, so eventually the magnetic fields will align.  This can take several weeks/months or even years if the magnets are weak.