Al, as regards the Briancunnungham post, I think it is important to understand he considers himself to be a skeptic. Not that there is anything wrong with that but in the case of aftermarket fuses he would be the type of skeptic not to actually try the fuse but to attempt to shoot it down with skeptic's arguments. Another thing I find fascinating is his use of capital letters when he states, "...within finite bounds of plausibility." Well, give me a break, what might be implausible to one person might easily be perfectly fine to another person. You know, if you start talking quantum mechanics to the guy on the street he will most likely look at you won't those big eyes that look like a deer in the headlights. So, I would not at all define a concept as be feasible or plausible based on some loosely goosey constraint such as the bounds of plausibility. Hell, black holes are "implausible" to probably 80% of the world's population. Cameras are "implausible" to folks living in many remote parts of the world, well, maybe not now with cell phones and everything. LOL. Who is defining what is plausible?