Rank: Advanced Member
Groups: Member
Joined: 7/15/2008
Posts: 50
Points: -238
Location: nyc
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as we understand this universe it is expanding since the "big bang"-if that is so then i believe that all that exists within the universe from the tiniest quantum particle to the largest objects [stars] are also constantly expanding at the same rate so the true size of the universe is unknown -there is no way to measure this because any instrument that exists or will be conceived will also be expanding at the same rate--if for instance- everything expands at a rate of 1 inch every 24 hours a measuring ruler or any other device will also have expanded 1 inch--so in effect what was measured yesterday is today the same size only larger by 1 inch---is this worth thinking about?: 
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Rank: Advanced Member
Groups: Member
Joined: 3/19/2008
Posts: 116
Points: 57
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definitely worth thinking about and a very interesting perspective. ultimately everything is relative, isn't it. time, too, being inextricably related to space per Einstein, is malleable and can not be truly measured, except relative to an accepted standard of time. i reality is truly based on perception and observation, it seems pretty clear that time and space may not only appear differently in different epochs, but also simply to different observers. so a fruit fly's 24-hour lifespan may feel just as long to the fly as our lives do to us. thanks for the thought-provoking post and welcome to the forum!
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