What an idiot u are. U don't have the slightest clue. I'd think anyone who thinks they are one who knows what they're talking about wouldn'tbe quite do stupid or ignorant. Obviously u weren't there so to judge something u know zero about makes u look like the fool. Rubiks was not the only brand but was the best as far as I know and record holders used a new cube. The were all completely modified to get those speeds. It amazes me how some can be so judgemental having never even been around at that time. U probably only believe it if it's on Wikipedia which also want around back then. All I did was shared something I recall from history in my own life. Calling me a liar makes u one and also makes u look stupid.