tl;dr; I sanitized my mash pot, fermenter, and everything with water. Is it ruined?
I'm two days into fermentation of a high gravity imperial stout, and the yeast is burping nicely. Due to a mix up between my wife and I, I just discovered that the star san spray bottle I used to sanitize everything was actually just water. Certainly this is not ideal, but is it dangerous? Should I let my brew ferment and see how it tastes, or give up now and throw it out?