346 reputation
314
bio website physicsoverflow.org
location dilaton@physicsoverflow.org
age
visits member for 1 year, 2 months
seen yesterday

I am also active on PhysicsOverflow: a new higher-level physics site

Since Ron Maimon has been driven away (by external SE forces against the will of the then on Physics SE active community) at the beginning of December 2012 and many other experts have left too, this is no longer the reasonably high level Physics.SE of physicists and physics enthusiasts I loved, enjoyed, and appreciated during almost two years.

Apart from the striking downgrading of the physics level (sporadic higher level questions about advanced topics get no longer answered and sometimes even downvoted!) and the fact that fundamental physics topics I am interested in have disappeared, too many very bad things, which should not occur on a serious physics site that upholds the scientific integrity, are now happening on Physics SE on a regular basis. The dominant people in power being very cynical and interested only in policying and enforcing detrimental and harmful rules and constraints destroys the usefulness of this site for people seriously interested in learning physics at a technical level, prevents the site from recovering from the heavy blow it had to take at December 2012, and drives academics, active researchers and students of physics and astronomy away.

Experts are not taken serious, they have nothing to say sbout for example what questions are allowed, people interested in doing advanced higher level physics are no longer welcome, trolling about legitimate mainstream (theoretical) physics is allowed or even endorsed as it gets upvoted by the crowd and even supported by certain moderators. This makes asking question on Physics SE about some in principle legitimate fundamental physics topics no longer a good idea. The few higher level questions still left get flooded down anyway.


Oct
26
awarded  Taxonomist
Sep
25
awarded  Yearling
Sep
24
awarded  Autobiographer
Aug
25
comment Will an observer falling into a black hole be able to witness any future events in the universe outside the black hole?
The only people who are still confused about the difference between coordinate and true singularities are at most beginning students. So it is not clear about who s confusion the first sentence talkes about; working physicists can not be meant.
Jul
27
comment is there any theory or observational evidence that our universe is electrically neutral or not?
Or did I miss something and astrophysics (and maybe also cosmology and such topics that can be more theoretical) are now considered off topic here these days ...?
Jul
27
comment is there any theory or observational evidence that our universe is electrically neutral or not?
@RhysW Why is this closed? Asking if the universe as a whole is expected to be neutral from experimental or theoretical consideratio is a legitimate good question ! There is also nothing unclear about it. So could you please reopen?
Jul
2
awarded  Curious
May
26
awarded  Nice Question
May
24
awarded  Custodian
May
24
reviewed Approve suggested edit on How exactly does inflation convert random gravity fluctuations into coherent gravitational waves?
May
3
asked How exactly can the hypothetical conformal invariance of the CMB spectrum be established by analyzing tensor modes?
Apr
21
comment What does black hole evaporation correspond to in the accelerating universe / black hole analogy?
Dear downvoter, what is wrong with my question, can you please be a bit more specific and explicit thant just pushing the button ?
Mar
31
revised How exactly does inflation convert random gravity fluctuations into coherent gravitational waves?
Improved title (I hope so)
Mar
26
asked Does the holographic principle contradict eternal inflation?
Mar
24
accepted Do the E and B modes of the CMB polarization have anything to do with electric and magnetic fields?
Mar
24
asked How exactly does inflation convert random gravity fluctuations into coherent gravitational waves?
Mar
23
comment Do the E and B modes of the CMB polarization have anything to do with electric and magnetic fields?
Thanks for this nice answer and claritication, I have already seen such a picture for example from the press announcement :-). What always looks slightly strange to me is, that it seems that in the pattern for $E>0$ it looks from a naive point of view that if the lines are $\vec{u}$ then $\nabla\vec{u} = 0$ than positive ... Can you give more details about how gravitational waves can produce temperature quadrupoles and generally about the mechanism 2 ?
Mar
18
comment Why can primordial tensor perturbations of the CMB be ascribed to gravitational waves?
@Py-ser it was mentioned somewhere in a physics blog and I am looking for papers or direct explanations (in an answer) that explain it further.
Mar
17
asked Why can primordial tensor perturbations of the CMB be ascribed to gravitational waves?
Mar
16
revised Do the E and B modes of the CMB polarization have anything to do with electric and magnetic fields?
Added source of information