Wadsworth constant is a meme that states that the first 30% of any video can be skipped because it contains no worthwhile or interesting information.
Youtube actually allows you to apply this constant and allows you to skip the first 30% of the video. Comes in handy when listening to trance/electronica music.
apply this to the end of youtube video links:
if the ? does not exist use:
if the ? already exists use: