Is it (Half)baked yet?

As an engineer and a color-blind person, I'm often perplexed by the baking instructions for my cake/pie/bun. The directions say something like "bake 25 to 30 minutes or until golden brown" or something similar. So, what is it? Do I set the timer for 27.5 minutes and hope for the best? What's "golden brown"? Is George Hamilton considered "golden brown"? What if I'm baking chocolate cake? Some directions call for poking the cake with a toothpick "until it comes out clean". Obviously, clinging batter is underdone, but how many sticking crumbs make a toothpick clean?

I propose the following three part doneness tester. The first part is an in-oven video camera to measure color. The second part is a extendable in-oven probe used to measure temperature, consistancy, texture, and resistance. The video camera could also capture images of the probe for crumb content. The third part is a computer/controller to run the whole thing. The baker would input the parameters for his or her preferences. The controller would also maintain a database for repeat bakings and some AI for experimentatal baking. The whole thing could be mounted inside at the top, with the interface mounted separately on top or next to the oven on the counter.