[r9etb]

The pen exists. It's the same pen, regarless of whether, it's blue, foamy, stinks, dried up, or has any other particular quantification. It exists and is what it is, regardless of whether any sentient being exists to comprehend it.

It's the "same pen" despite the fact that in reality its physical makeup is in a constant state of change?

You seem to be saying that the concept of "the same pen" has its basis in something other than physical reality -- it's an abstract concept of the sort that Plato talked about in his theory of "forms."

[spunkets]

" You seem to be saying that the concept of "the same pen" has its basis in something other than physical reality"

No. The basis is in reality. I'm also the same person I was yesterday, even though I had some more coffee, took a few leaks and gobbled up a bag of candy bars.