Source: cirosantilli/grand-unified-theory
= Grand Unified Theory
{c}
{tag=Unsolved physics problem}
{title2=GUT}
{wiki}
<electroweak interaction> + <strong interaction>.
Appears to be an <unsolved physics problem>. TODO why? Don't they all fit into the <Standard Model> already? So why is strong force less unified with electroweak, than electromagnetic + weak is unified in electroweak?