the idea girl says
Sean Carroll Linda Randall – Particle Symmetries Invariances Page 51 from page 149, 150, 151 notes in the book.
Symmetry of all particle outcomes are the SAME.
O see . (dot) in the middle of the circle
no matter what ANGLE its the SAME results
 90° Angles all four corners of the square = SAME
rotational invariance .
symmetry of forces – “it doesn’t matter which direction your experiment is pointing” the results are the SAME!
gauge invariance “local” symmetries – ” symmetry transformation separately at every location.”
” a transformation that must be carried out uniformly everywhere at the same time.”
Local – “not at one point, it means separately at every point.”
my theory (like fermions?)