The website of theseus.

I do believe there's a lot of philosophy in bringing this analogy to modern, or even semi modern, times.

Two ships both with the same name are absolutely different ships.

Two books off the same press, are different books?

Is the website I'm viewing on my phones screen the same as the website you've viewing on your device? If we change the settings of a web pages code from night mode to full color is it the same website?