Try Quests to earn cryptoSynth utilisations
THORChain synths for each liquidity pool are half-backed by non-RUNE asset (a backing of half their 'synth supply' face value) and half-backed by RUNE asset (of equal pool-depth percentage). At synth liability 100% (synth utilisation 200%), the entirety of a pool's depths would be backing synths. At synth utilisation 100% (synth liability 50%) synth supply would be equal to non-RUNE asset depth, and synth-holders would account for 50% of pool share (and liquidity providers the other 50%).