Think of Bitcoin and Gold as call options on the entire global monetary system. If Govs become insolvent, Bitcoin and Gold is there. If the masses lose faith in central banks, Bitcoin and Gold is there. If central banks debase currencies too quickly, Bitcoin and Gold is there. That is the staying power of scarcity via well known stock to flow ratios.
I'm glad Bitcoin is not inversely correlated to equities, because that would mean Bitcoin went down in an equities uptrend. Being non-correlated is superior: Bitcoin marches to it's own drum.
All this being said: cash is king in times of uncertainty. Bitcoin is a speculative bet that "money without masters" will become an essential part of the future monetary system. We're a long way from that still.
Advice in good times and bad: maintain a deep safety net and don't get too nuts with debt or leverage.