From: jyablon@nycap.rr.com   
      
   Over half a century ago, John Archibald Eheeler in his theory of   
   Geometrodynamics studied the Planck scale and showed how one could view   
   the vacuum as comprising a teaming array of Planck fluctuations with   
   positive energy offset by gravitational interactions with negative   
   energy and netting out to zero. Then, even the slightest imbalance   
   toward positive energies could be responsible for our positive energy   
   universe. But most importantly for the present discussion, every Planck   
   fluctuation has a Schwarzschild radius and so is also a miniature black   
   hole, which means it will also emit Hawking radiation. So if we had   
   detection devices as large as a galaxy, one would suppose that we would   
   be able to observe the Hawking radiation from these super-tiny black   
   holes. But of course we don’t. We only have experimental equipment that   
   brings us up to the TeV range.   
      
   Nevertheless, even from our hobbled observational platform 20 orders of   
   magnitude away, one would think that we must observe the residual   
   effects of this Planck scale Hawking radiation in some fashion. And I   
   can think of two right away: First, when we heat up a black body, it   
   emits a blackbody spectrum. Planck 1901. Second, when we look out into   
   the universe we see a cosmic microwave blackbody spectrum.   
      
   Now, I don’t believe in coincidences when it comes to physics. More to   
   the point, if the laws of nature are economical as I believe and I am   
   sure many of you believe, why would blackbody spectra appear from black   
   holes, and separately appear under other circumstances, and be totally   
   physically unrelated. Sort of how Benjamin Franklin first hypothesized   
   in one of the earlier episodes of scientific unification that the   
   lightning from the heavens is the same phenomenon as the static sparks   
   we feel and see when we rub our feet on the carpet and then touch metal.   
      
   So from this point of view, might it be that our definitive observations   
   of blackbody spectrum under known sets of conditions are actually   
   observations of Hawking radiation from miniature black holes viewed   
   relative to their origin from more than 20 orders of magnitude removed,   
   stimulated by whatever we are doing in our experiments such as raising a   
   material cavity to high temperatures?   
      
   To get right to the point: might it be that Hawking radiation is the   
   fundamental physical phenomenon, and that when we observe blackbody   
   spectrum in hot experiments or cosmic observations we are simply   
   observing derivative manifestations of the fundamental Hawking   
   phenomenon? In which case the answer to whether Hawking radiation is   
   realistic or has ever been observed would be: yes it is realistic, and   
   it is observed all the time.   
      
   JRY   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)