gaylordthethird asked:

If I removed all the parts of a train, and replaced them with identical looking parts. Would It still be the same train?

amtrak-official answered:

How about instead of ship of thesusing my trains, you just give me a 2nd train

[cealvan]

so how about this middle ground?

I start by removing all the parts from the first train and replace them with identical parts

I then take all the parts I removed from the first train and build a train out of them

which of the two trains is now the original

[amtrak-official]

The rebuilt train