Youtube video, dating November the 8, 2016, with Astronomer Margot Brouwer, University Leiden, The Netherlands, who was the first to test Verlindes theory.
Link:
https://m.youtube.com/watch?v=n2OOwVkKuwM
Translation, mine (Eye):
She is saying
'At the beginning of this year, I attended a meeting where Verlinde explained his entire theory for the first time. There he showed a formula that explains the effects of dark matter with just normal matter.'
Then I thought: 'Yes, I can test that'. I can find out whether his formula matches my observations'.
Matter curves space-time. This bends light from stars that are far away. How much the light bends depends on the amount of mass.
In practice light bends more than what is expected based on the amount of mass that is perceived.
So up to now scientists thougth that a sort of invisible matter was causing the extra gravity: dark matter.
Brouwer uses data from an enormous telescope in Chile to determine distortians (Eye: or does it needs to be translated with the word 'changes'?) from distant galaxies to see how the gravity is spread over the space.
'We notice more gravity than can be explained with normal matter. This may have two explanations. Either there is dark matter we can not see, or gravity works in a different way than we think it does. And this is what Erik Verlinde is telling us.'
Brouwer looked at to what degree her observations agreed with the theory of Verlinde.
And the result is?
'When I saw how good Erik Verlindes theory agreed with my data, I was very surprised. Because in Erik Verlindes theory there are no free parameters. The amount of gravity that a galaxy has in his theory is only based on the normal matter. And we see the normal matter so we know how much there is. Because of that we also know how much gravity there is.
The prediction of Erik matched exactly my observations.'
So Verlindes theory matches the observations. But does that mean that the whole idea of dark matter can now be thrown away?
'Both theories are able to explain the obervations, but with Eriks theory there are no free parameters. With dark matter you have to adjust it. It has to be 'fitted'.
I am the first that worked in this new way, testing Eriks theory with the space-time curve, and who is actually finding that the observations match his theory.
Yes, I am the first doing that.'