All of nick2's Comments + Replies

nick200

"Spinoza suggested that we first passively accept a proposition in the course of comprehending it, and only afterward actively disbelieve propositions which are rejected by consideration."

Whether this view is more accurate than DesCartes' view depends on whether the belief in question is already commonly accepted. When in the typical situation a typical person Bob says "X is Y, therefore I will perform act A" or "X should be Y, therefore we should perform act A", Bob is not making a statement about X or Y, he is making a stat... (read more)

nick230

The influence of animal or vegetable life on matter is infinitely beyond the range of any scientific inquiry hitherto entered on. Its power of directing the motions of moving particles, in the demonstrated daily miracle of our human free-will, and in the growth of generation after generation of plants from a single seed, are infinitely different from any possible result of the fortuitous concurrence of atoms... Modern biologists were coming once more to the acceptance of something and that was a vital principle.

Given what we know now about the vastly compl... (read more)

7bigjeff5
Is it better to say "The problem is too big, lets just give up" or "The problem is too big for me, but I can start with X and find out how that works"? It seems to me Lord Kelvin was saying the former, while Wohler clearly believed the latter, and proved it by synthesizing urea. Did Wohler understand the intricacies of biology? No, of course not, but he proved they could be discovered, which is exactly what Kelvin was saying could not be done. After almost 200 years we still aren't done, but we do know a whole lot about the intricacies of biology, and we have a rough idea of how much farther we need to go to understand all of it. Furthermore, we understand that while biology is incredibly complex, it follows the same rules that govern the "fortuitous concurrence of atoms" as Kelvin put it. Kelvin was plain wrong, and worse, his whole point was to discourage further research into biology. He was one of the people who said it could not be done, while Wohler just went ahead and did it.
nick200

In line with previous comments, I'd always understood the idea of emergence to have real content: "systems whose high-level behaviors arise or 'emerge' from the interaction of many low-level elements" as opposed to being centrally determined or consciously designed (basically "bottom-up" rather than "top-down"). It's not a specific explanation in and of itself, but it does characterise a class of explanations, and, more importantly, excludes certain other types of explanation.

This comment hits the bullseye. The general idea of... (read more)

nick210

In line with previous comments, I'd always understood the idea of emergence to have real content: "systems whose high-level behaviors arise or 'emerge' from the interaction of many low-level elements" as opposed to being centrally determined or consciously designed (basically "bottom-up" rather than "top-down"). It's not a specific explanation in and of itself, but it does characterise a class of explanations, and, more importantly, excludes certain other types of explanation.

This comment hits the bullseye. The general idea of... (read more)