Re: The legislator's fallacy
"Refine pi to be 3", is actually more sense than most things. Why? You can calculate the size of the observable universe to *within the size of a Hydrogen atom" with just 40 odd decimal places of pie.
https://www.youtube.com/watch?v=FpyrF_Ci2TQ
So if it's only "3" then does it matter? If measuring by hand, we don't need the calculation, we go with the actual measurements... and if calculating it, we can do so with better degrees than learning it by wrote (though of cause, writing shorthand, someone could just say "3" and save on space on paper ;) ).
In the grand scheme of things, there are more important things to worry about... (as people believing 2+2=5 is not a legislative problem...)