He does his homework, which is rarer than it should be.
Obviously an invented statistic. That would imply that the perceptive minor ity would be three standard deviations away from the mean, as in an IQ of 1
35 (not that everybody with an IQ of 135 would have enough interest in fuse s to know how they work).
all > we can reasonably expect.
This would be a bit silly. The principle of a fuse is that you put enough e nergy into a resistive element to at least melt it (so that it loses the me chanical strength to stay in place as a continuous lump of conducting metal ).
If you want it to blow fast, you have to put in enough energy to boil it, s o that its vapour pressure blows it out of the way - and if the voltage acr oss the terminals is high enough the vapour can sustain an arc discharge wh ich limits the breaking capacity of the fuse.
In any event, a fuse obviously can't blow instantaneously because you can't put in an infinite amount of energy.
A chunk of the "fake" business is probably people stealing junk from manufa cturer's reject bins and selling it on without mentioning where it came fro m.