<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>1. Dark Energy is invisible. Extra Dimensions are invisible.2. Dark Energy permeates all of space at the same density. Extra Dimensions, probably permeates all space.Can all the multi dimensions act like a repulsive energy force in our 4 dimensions, but not be any kind of energy? <br />Posted by kyle_baron</DIV></p><p>That's an interesting approach, I'm having a difficult time trying to visualize your statement!</p><p>I may just question one thing if you're correct: if strings make up the entire universe, then why wouldn't dark energy prevail with expansion everywhere in the entire universe? From what we see right now, dark energy only succeeds in areas that are devoid of gravity. Hence the reason why planets, stars, and galaxies are even able to form in the first place! </p> <div class="Discussion_UserSignature"> <p> </p><p><strong><font color="#ff0000">Techies: We do it in the dark. </font></strong></p><p><font color="#0000ff"><strong>"Put your hand on a stove for a minute and it seems like an hour. Sit with that special girl for an hour and it seems like a minute. That's relativity.</strong><strong>" -Albert Einstein </strong></font></p> </div>