Vincent Lefèvre Crap 

He insistently replaces simple illustration (it was asked above), which says that floating the point is equivalent to choosing scale (miro-, kilo'-, giga''-), which you do every day, with opposite statement "floating point allows to measure both astronomical and atomic scales using single measurement unit". You do not measure galactic distances with millimetres. Vincent Lefèvre is idiot. He also eliminates further illustration which reminded that choosing the scale corresponds to discarding least significant bits and ten-bit exponent can denote discarding of hundreds of bits of "single unit of measurement" (when you pass from mm to light years you discard hundreds of least significant digits in fact and, thus, pass, to a different unit), which is real idea behind floating point, disliked by Vincent Lefèvre Crap. It is difficult to find analogy for such a crap  such self speaking it is.