Genady

Right. Specifically because light supposedly was not there yet when there was no earth and sky.

I read these stories and I think they are just reprints from 10 and 20 years ago. All the same claims, perhaps in the same words. No new evidence, one way or another. Why people and organizations do what they do? I can come up with numerous reasons. I am sure, you can too. The most innocent being, better safe than sorry. I think it is difficult to show that something has no effect. It is usually a null hypothesis. Anyway, after some 30 years and the wide range of invasion, where is the damage? It supposed to be big. I cannot find reports on that.

How do you test this hypothesis? How do you test this hypothesis? How do you test this hypothesis?

I've seen him interviewing Alan Guth. Guth said about the same that I've described regarding the vacuum energy density. Anyway, being interviewed doesn't mean that they "are submerged in this topic and they believe that there is a problem/issue that needs to be solved." Guth is not and does not. I don't know who is / does. Here it is: Alan Guth - What Does A Fine-Tuned Universe Mean? - YouTube

Who are they? The only seriously considered related issue that I know of is the value of cosmological constant / vacuum energy density. And this is not because its fitness for life. Rather, the other way around: if we assume that this number can be different and that it actually is different in different "pocket universes", then the specific value that we observe is what it is simply because most other values don't allow for existence of an observer in those universes.

The old studies were small, short, and not convincing. This newer study is 5 years old, and it still only claims that the lionfish "pose a threat" and "can disrupt." It doesn't show that it actually does. It is an assumption of the study and a justification for it. Plus, it is a simulation, in one locality, and only regarding effects of harvest on the lionfish population (on the assumption that we want to reduce it). What does it show? It shows that if we harvest lionfish more, then their numbers will decrease (hardly unexpected). And, if we harvest native predators less, then the lionfish numbers will decrease. The latter in fact shows that there are native predators of lionfish! What I see on the grounds here, in Southern Caribbean is, no long term effect, no observable damage to the reef ecology. That's why I suggest it is a myth.

The Newton constant of gravitation equals exactly 1 in Planck units, so it is not one of the numbers mentioned above. Scientists such as Alan Guth and Leonard Susskind are "serious scientists" in my book. Evidently, they don't know what you say here. How do you know this? 1. The existence or not existence of other universes does not depend on whether you call it scientific or nonscientific. 2. Anyway, how do you know that it cannot be refuted?

A fine-tuned universe is not a problem, but an observation that the universe is very sensitive to a couple dozens of numbers that we put into our fundamental theories "by hand". These numbers are obtained experimentally or observationally. Relatively small changes in their values would lead to big changes in the observable universe.

I imagine rather a different situation. A little kid before going to bed asks the mother to tell a story. "What story?" asks the mother. "Where the earth and the sky and all the rest came from," answers the kid. "OK," says the mother, "In the beginning..."

Why "nothing"? There is no mention of "nothing". All it says is, the sky and the earth were not there.

OK. I only wish you would make it clear in that post. I cannot watch the video you've linked, but wanted to know what was your message. Have a good day.

Which argument are you attacking?

Would be helpful if the post comes with some explanation about what it is doing in the thread, so others don't need to check the link if they're not interested. I think, it is also a rule here. Anyway, is there anything about lionfish or invasive species in the video? What?

I don't know. Can you explain?

Wrong thread?

Well, then this boson has to be massless in order to propagate with the speed of light as required by GR. And it was Richard Feynman I think that showed that such boson has to be spin-2 particle, based on GR again.

Which "hypothetical graviton" did you refer to?

The hypothetical graviton cannot be the Higgs boson because (a) the former should be massless while the latter is massive, (b) the former should be spin-2 particle while the latter is spin-0.

A slow dance with a quick ending. So much to the "Nothing eats lionfish" slogan. This video:

From a Stanford lecture on Fourier transform:

Do the numbers work out? Population and population growth of the COTS on one hand, number of trained divers and their rate of injecting the COTS on the other? Will it make even a dent in the COTS population? Divers kill lionfish in this part of the world, but it doesn't make any difference in the lionfish numbers. It tastes good, though.

If they are right and the eutrophication is the main cause of the COTS' population explosion, then I don't know what you guys can do about it. Corals vs agriculture, hmm... At least we don't have that problem here. All the rest, yes - warming, acidification, overfishing, mechanical damage to the reef by boats and divers, - but not eutrophication.

It is not invasive, is it?

Since appearing in our area about 15 - 20 years ago, the invasive lionfish became a common resident on our reefs. Contrary to the wide-spread anti-lionfish propaganda about its many dangers to the local marine environment, such as "Nothing eats lionfish", "Local fish don't know that it's a predator", "It eats everything", "It multiplies uncontrollably", etc., it did not cause any damage to the coral reef or to its inhabitants. It rather found its eco-niche and lives peacefully with - i.e. eating and being eaten by - other fishes. It added an exotic element to our underwater experience, though. Please meet - the lionfish:

The use of single-use plastic straws is increasingly banned. One of the common alternatives is paper straws. Would the chemistry work with the alternatives? Maybe it would work better?