Re: speed vs wind
It is absolutely possible to out sail the wind. I can think of any number of boats that can do so regularly at all points of sail. While I don't think it is possible to sail directly downwind at faster than the wind speed, it is possible to make it to a leeward mark faster than the wind, by jibeing downwind.
Take a look at
Pretty much any off shore record breaker in the last 15 years
Almost anything with a canting keel