(GM admits that the last one is kind of pointless in a car that will rarely, if ever, see a trailer hitch, but the cluster required four
gauges for symmetry.)
Not exact matches
Johnson pointed to technical
symmetry from 2014 and 2015 as a
gauge for how nervous Apple investors should be.
(The strong force is based on a yet larger set of
gauge symmetries, but this fact was obscured by a quite different effect and also was not discovered
for a long time.)