In the distant past at bigbang the universe was very hot and dense. Can i say it was dimensionless then? If so did it come to this 3 dimension through 1 and 2?a little more speculation... is/will it go to higher dimensions?
is it safe to say that all galaxies were 1 during bigbang and were teared apart as time went?if so isn't the rod which you use to measure is tearing apart right now?hence the length varies. the article cited by Naty did seem to explain this but i find it ambiguous
i am unable to convince...
i don't understand. Gravity held matter together billions of years before but it dint stop the universe from expanding. When i said today and tomorrow i dint mean it literally. (say the difference between the lengths of 1 m today and after 10 billion years)
if you are not sure what we are...
a)since universe is expanding is today's 1 meter different from tomorrow's 1m?
b)since distant between any 2 points is increasing is the universe expanding into 4th dimension?