&quot;As a result, gravity, which is a pushover on everyday scales, catches up with the other forces and becomes their equal at a sub-sub-subatomic distance known as the Planck scale (around a few trillionths of a trillionth of a trillionth of a meter).&quot;<p>What?  How is that not completely wrong?  Gravity is at its most important on large scales.  Or are they just badly describing a (known-to-be-broken) quantum gravity model?