Talk To A Scientist

You have a question about the foundations of physics, or physical science in general (including chemistry), but don't know where to even start? Now you can talk to me or someone from my team of consultants on skype.

To set up an appointment, please send an email with the topic(s) that you are interested to discuss to and wait for a response-email containing a formal introduction of the service terms. Typical response times are 1-2 business days. Please do not send payment until we have responded to you with specific payment instructions.  

Method of payment is typically electronic, and payment is typically expected in order to book a session.  

Our session rate is approximately US$50 per 20 minutes, but final pricing depends on the type of service requested. Document or video content review is considered on a case-by-case basis but this may affect pricing. Group pricing and multiple-booking discounts may be available.  

During our conversation, you can ask us anything you want to know about physics and physical science in general!

My own expertise is in: cosmology, quantum mechanics, general and special relativity, quantum gravity, unification and the theory of everything, particle physics, and general questions about academia. On my team are also experts on: quantum foundations, astrophysics, string theory, and other subjects related to chemistry. I am sure we have you covered. All of us have a PhD in physics and many years of research experience.

We do not counsel students for homework assignments.


  1. Thanks for doing this -- it's a great idea!

  2. Can we request a specialist in a particular subject if we believe that we have a good grasp of fundamental physics? For example, the Black Hole information paradox.

  3. Yes, I try to address special requests to the extent possible.

  4. Are you looking to extend your team anytime soon? (with other fields of physics)

  5. Juan,

    Maybe. Please send an email to the address mentioned above.

  6. I keep replying here and see nothing forwarded. Again. I would like to have your email address in order to consult with you.

  7. Rosemary,

    I don't know what you mean. The comment above is the only one from you that was submitted. My email address is in the above post.

  8. Sabine - thanks for this. I actually have sent an email. Hopefully you'll engage on the subject.


  9. This is an awesome idea. I'm a layman in this, but I still have a couple of "thoughts" that I've never seen in the literature (well, actually, I found one with similar thinking as I on some very ugly looking website, and he had all the math, which I don't, but nobody had given a crap about this guys website).

    Either these "ideas" are so blatantly obvious that nobody even mentions them, have been discounted so many decades ago that nobody even mentions them, or are so obviously wrong that nobody mentions them, but... nobody mentions them. :D


  10. Is the email address still working?

  11. Hello,

    Can I, instead of talking to physicists, request a written review on a physics thought experiment (about 2 pages), on its logic, relevance, understanding of physics, the thought experiment goal and validity of its claim.

    I am not a student. I am an engineer nearing retirement.


  12. Hi Edwin,

    No, we don't review papers or proposals. We answer questions.

  13. The best way to get an article reviewed is to submit it to a journal.

  14. Sehr geehrte Frau Sabine Hossenfelder,
    Is it possible to subscribe to a newsletter of your blog?
    Vielen Dank

  15. Hallo Herr Boch,

    In the side bar below the visitor could you can subscribe to this blog's posts. Or so I believe. I've never tried if it works. If it doesn't work, please let me know!

  16. Regarding the stagnation of physics, could a symptom of this be related to the fact our government is stamping everything do not release for "Reasons of National Security" currently there are thousands of patents (ideas) being hidden from the public, everything from Anti-gravity technology to anti-aging drugs. I believe by hiding the latest breakthroughs not only causes stagnation in science it also causes stagnation of our society.

  17. I like very much your way to talk about physics, portraying as well current theories as well as "inconvenient thruths" to use your own words, while not using goobledygook language. Good communication.

  18. If particles are pointlike, how can a black hole have a diameter lager thsn null?



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