What difference does it make -- knowing the future, is Knowing the future...which puts you in an Extremely powerful position, Doesn't matter if it's a second into the future, or a minute, or hour, or week, or month, or year or decade, or century, As Gordon Gekko would say...the Most precious commodity I know of...is Information,
knowing how far in advance does matter in how I would trade it. If I knew stock X would be at X price in 5 years vs 5 days I would trade it different.