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posted by chromas on Thursday March 14 2019, @01:20PM   Printer-friendly
from the threw-the-facebook-out-with-the-vax-water dept.

Facebook cracks down on vaccine misinformation

In a blog post, the Menlo Park, Calif. company said it will reject any ads containing misinformation about vaccines, remove any targeted advertising options like 'vaccine controversies,' and will no longer show or recommend content containing this type of misinformation on Instagram Explore or hashtag pages."

Submitted via IRC for FatPhil

Combatting Vaccine Misinformation

We are working to tackle vaccine misinformation on Facebook by reducing its distribution and providing people with authoritative information on the topic.

[...] Leading global health organizations, such as the World Health Organization and the US Centers for Disease Control and Prevention, have publicly identified verifiable vaccine hoaxes. If these vaccine hoaxes appear on Facebook, we will take action against them.

For example, if a group or Page admin posts this vaccine misinformation, we will exclude the entire group or Page from recommendations, reduce these groups and Pages’ distribution in News Feed and Search, and reject ads with this misinformation.

We also believe in providing people with additional context so they can decide whether to read, share, or engage in conversations about information they see on Facebook. We are exploring ways to give people more accurate information from expert organizations about vaccines at the top of results for related searches, on Pages discussing the topic, and on invitations to join groups about the topic. We will have an update on this soon.

We are fully committed to the safety of our community and will continue to expand on this work.


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  • (Score: -1, Redundant) by Anonymous Coward on Thursday March 14 2019, @06:07PM (18 children)

    by Anonymous Coward on Thursday March 14 2019, @06:07PM (#814348)

    the Earth is round

    This is literally no different than saying "The sun goes around the earth". It is a "not even wrong" statement. The earth is whatever shape it takes in the geometry you choose to use. Using the standard in science, the earth is "flat" and the local geometry is curved due to the mass of the earth.

    Homeopathy has been demonstrated to be wishful thinking

    Where was this demonstrated?

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  • (Score: 2, Insightful) by khallow on Thursday March 14 2019, @07:19PM (17 children)

    by khallow (3766) Subscriber Badge on Thursday March 14 2019, @07:19PM (#814389) Journal

    The earth is whatever shape it takes in the geometry you choose to use.

    Not at all. The intrinsic curvature of Earth remains the same no matter what geometry you use.

    Using the standard in science, the earth is "flat" and the local geometry is curved due to the mass of the earth.

    This is not due to relativistic effects. It's curved as an oblate spheroid because that shape happens to be almost the lowest potential gravitational energy of that much mass given its resistance to further compression.

    • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @07:43PM (16 children)

      by Anonymous Coward on Thursday March 14 2019, @07:43PM (#814401)

      The reason light "curves" when it passes the sun is because space-time itself is curved. The photons are traveling in a straight line from their perspective. Same with satellites orbiting the earth. The path may appear curved, but it is actually a straight line along a curved geometry. It is explained quite clearly here:

      Point #1 is actually straightforward to explain: objects simply travel on the straightest possible paths through spacetime, called geodesics. The paths only seem curved because of the warping of spacetime.
      [...]
      Now, I mentioned that spacetime needs to be warped in order for objects' trajectories to appear curved to us despite them actually being "straight."

      https://physics.stackexchange.com/questions/3009/how-exactly-does-curved-space-time-describe-the-force-of-gravity [stackexchange.com] [stackexchange.com]

      • (Score: 1) by khallow on Thursday March 14 2019, @08:28PM (15 children)

        by khallow (3766) Subscriber Badge on Thursday March 14 2019, @08:28PM (#814431) Journal
        And that is quite irrelevant. Nothing on the surface of Earth is orbiting.
        • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @08:38PM (14 children)

          by Anonymous Coward on Thursday March 14 2019, @08:38PM (#814442)

          So now you are saying GR only applies in outer space? Space-time suddenly stops curving when you get near the earth?

          • (Score: 1) by khallow on Thursday March 14 2019, @08:57PM (13 children)

            by khallow (3766) Subscriber Badge on Thursday March 14 2019, @08:57PM (#814457) Journal

            So now you are saying GR only applies in outer space? Space-time suddenly stops curving when you get near the earth?

            Are you saying that you're still beating your wife? I guess not, huh.

            As I noted earlier, those things are irrelevant because they don't explain the curvature of the Earth. I then explained what was relevant. That's all.

            • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @09:06PM (12 children)

              by Anonymous Coward on Thursday March 14 2019, @09:06PM (#814468)

              You don't seem to be making any sense.

              The earth is curved due to gravity right? That is the "force" that formed the earth and is holding it together?

              • (Score: 1) by khallow on Thursday March 14 2019, @09:15PM (11 children)

                by khallow (3766) Subscriber Badge on Thursday March 14 2019, @09:15PM (#814478) Journal

                The earth is curved due to gravity right?

                Yes and no. It's curved because that shape is the minimum potential energy configuration given both gravity and EM repulsion of the atoms that make up the Earth.

                That is the "force" that formed the earth and is holding it together?

                And electrmagnetism is the force keeping the Earth from collapsing to a small mass. Neither has anything to do with orbital trajectories or curvature of space due to the mass.

                • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @09:30PM (10 children)

                  by Anonymous Coward on Thursday March 14 2019, @09:30PM (#814487)

                  Is space-curved on the earth or not according to you? You keep avoiding the question.

                  Obviously it must be curved if you accept the earth curves the space around it, but then you say this has nothing to do with the curvature of the earth. That makes no sense. Do you mean to say the earth is also curved further on top of that due to space-time warping?

                  • (Score: 1) by khallow on Thursday March 14 2019, @10:02PM (9 children)

                    by khallow (3766) Subscriber Badge on Thursday March 14 2019, @10:02PM (#814509) Journal

                    Is space-curved on the earth or not according to you? You keep avoiding the question.

                    You keep asking irrelevant questions. I notice that you have been evading that loaded question about wife beating too. Very suspicious!

                    Obviously it must be curved if you accept the earth curves the space around it, but then you say this has nothing to do with the curvature of the earth.

                    Indeed. A sphere made of lead should be slightly more curved than a sphere made of aerogel due to the above described GR (General Relativity) effects, but the curvature of their respective surfaces is both going to be almost identical (due to the near immeasurability of GR at those scales) and have a positive scalar curvature due on the spherical surface which is irrelevant to GR.

                    • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @10:16PM (8 children)

                      by Anonymous Coward on Thursday March 14 2019, @10:16PM (#814512)

                      It doesn't make sense that the paths of stuff in orbit are so affected by this curvature of spacetime, but then it becomes irrelevant/negligible at the surface.

                      • (Score: 1) by khallow on Thursday March 14 2019, @10:24PM (7 children)

                        by khallow (3766) Subscriber Badge on Thursday March 14 2019, @10:24PM (#814514) Journal

                        It doesn't make sense that the paths of stuff in orbit are so affected by this curvature of spacetime, but then it becomes irrelevant/negligible at the surface.

                        Welcome to basic physics! You experience 9.8 m/s^2 of acceleration due to that gravity at the Earth's surface. It's only the matter underneath you pushing up that keeps you in one place. Meanwhile in space, you have to go something like 9-10km/s to stay in orbit without falling to Earth.

                        • (Score: 0) by Anonymous Coward on Thursday March 14 2019, @10:44PM (6 children)

                          by Anonymous Coward on Thursday March 14 2019, @10:44PM (#814521)

                          to stay in orbit without falling to Earth.

                          Yea, they fall straight towards the center of the earth, because it is a gravity well (spacetime is curved). Sorry, but your "explanations" do not make sense.

                          • (Score: 1) by khallow on Thursday March 14 2019, @11:30PM (5 children)

                            by khallow (3766) Subscriber Badge on Thursday March 14 2019, @11:30PM (#814532) Journal

                            Yea, they fall straight towards the center of the earth

                            Welcome to basic physics. They aren't falling straight with 10 km/s of sideways motion.

                            • (Score: 3, Touché) by PartTimeZombie on Friday March 15 2019, @01:14AM (2 children)

                              by PartTimeZombie (4827) on Friday March 15 2019, @01:14AM (#814580)

                              Holy moly!

                              That was hugely entertaining! It might well be the weirdest flat-earth debate I've ever seen. You both seem to hold that the earth is not flat, but the A/C is also arguing that it is flat at the same time, if you squint at it.

                              Or something. Also physics. Awesome. Made my day.

                              • (Score: 1) by khallow on Friday March 15 2019, @03:00AM (1 child)

                                by khallow (3766) Subscriber Badge on Friday March 15 2019, @03:00AM (#814623) Journal
                                Thanks.
                                • (Score: 1) by FatPhil on Friday March 15 2019, @02:38PM

                                  by FatPhil (863) <pc-soylentNO@SPAMasdf.fi> on Friday March 15 2019, @02:38PM (#814778) Homepage
                                  Thank you for your patience, otherwise I would have felt the need to chime in.

                                  I think the problem he has is that he doesn't understand that he curvature of spacetime is the curvature of 4-D spacetime, and that's a different concept from the geometric curvature of a 3-D subspace taken at an arbitrary observer's instant of time. The former induces the latter, but, depending on the observer, the latter can have a huge range of different properties, including that of what is parallel to what. All observers of interest or relevance will view the spacial curvature of the earth to be a real thing. Some (such as cosmic rays) might see the earth superficially as a pancake, but even those would be forced to admit that it is still fatter at the (possibly-ever-moving) middle and then narrows to a sharp edge at the (ever-changing) horizon.
                                  --
                                  Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
                            • (Score: 0) by Anonymous Coward on Friday March 15 2019, @03:29AM (1 child)

                              by Anonymous Coward on Friday March 15 2019, @03:29AM (#814635)

                              So, the amount of curvature depends on how fast the object is moving?

                              • (Score: 1) by khallow on Friday March 15 2019, @02:24PM

                                by khallow (3766) Subscriber Badge on Friday March 15 2019, @02:24PM (#814768) Journal

                                So, the amount of curvature depends on how fast the object is moving?

                                Note the use of the word, "sideways". 10 kilometers per second is about 110 US football field lengths a second. If the Earth were a point mass, then every orbit would trace out an ellipse relative to the Earth. How close to circular it was would depend on how close the centrifugal force of the sideways motion came to countering the pull of gravity. The curvature as such remains the same, but trajectories of faster objects don't curve as much.