@mark noble,
I am on board with rosborne's idea that most animals spend their time better.
I do not, however, share his notion that philosophy that isn't communicated is just daydreaming. Communication, that is, the adaptation of philosophical thought into words, is very restrictive to the thought process itself. Many criteria have to be satisfied for something to make sense verbally, but the same criteria may not apply to the idea. But to communicate the idea, we have to apply these criteria to it, and upon receiving the communicated idea, there is no way the recipient can completely identify which aspects are of the thought itself and which are of the added content.
But more on the issue, what constitutes 'philosophizing'?
Our family dog (we had many, but here I mean the last one) was exceptionally clever. She liked to carry long sticks, often as long as three meters.
One time she held a small tree like that, we came to a bridge. It was only around two meters wide, with bridge posts on either side of the road. I immediately saw that the long stick the dog was carrying would collide with the bridge posts on both sides, and so it did. The dog stopped as the stick hit, of course, and then her eyes went from side to side. Then she backed up a few steps and turned her head, so that the length of the stick was now parallel to her body, and then she walked over the bridge. I was quite shocked.
This may not constitute 'philosophizing', but it is evidence of abstract thought being used to solve a practical problem. And isn't that what philosophy is about?