At any time, any holder can burn their PAD, permanently removing these tokens from the circulating supply, and receive their backing. For example, burning 1% of PAD supply will give you exactly 1% of every token stored in the Vault. If PAD's market cap ever drops below its Vault backing, it will become profitable to burn your PAD, which will in turn make PAD more scarce and thereby more valuable, bringing the price of PAD back up.