Bottom-line thinking is fully committed: the Federal Reserve directly tells the whole world that it will do whatever it takes to prevent a liquidity crisis. Banks lack funds? Come and exchange anytime! The entire traditional financial system is welded with the hardest steel plate at the bottom.

Unlimited ammunition depot: removal of the cap = unlimited liquidity supply. Although it may not be used all at once, this "unlimited ammunition depot" on the table itself is the strongest reassurance and deterrent, specifically to suppress market panic.