I do think it’s now mainstream enough to be linked quite closely to equities price wise, so if that moves up it will go up with it.
If equities tanks then yes it could go down. 400 usd would signal a total rout in equities though imo.
How is it linked to equities?
Equities are based on a share of a real tangible entity and contain both an income component and the opportunity of capital appreciation (generally based on an increased perception of future earnings potential).
Equities are (generally) fully regulated and are feed for pension funds.
Equities offer a chance to guide and influence the underlying company.
Unless Ive missed something Crypto currencies don't offer any of the above?