Not on these scales. Artificial adjustments to the dollar happen on month increments, possibly days.
> while the other depends solely on the whims of the free market
Free is relative, the Bitcoin market is still too small to be isolated from manipulation.
> same way startups' stock fluctuates
Care to quote a startup stock that is traded decently (Bitcoin isn't a penny stock) and has a 10% dip in minutes that isn't newsworthy for anyone interested in that stock?
Because I can bet anyone following it would find it newsworthy.