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Comment Re: Same shit, different century (Score 2) 170

Not all nuclear rockets are powered by throwing bombs out the back (in fact, thatâ(TM)s a relatively out there idea). Instead, the more commonly proposed design is to simply use a nuclear reactor to make a propellant extremely hot. That propellant is usually hydrogen, because it gives you the best specific impulse by being extremely light, and easy to accelerate.

Comment Re: They used math (Re:I love science fiction!) (Score 1) 170

The new mathematics Iâ(TM)m afraid isnâ(TM)t terribly new, or exciting, itâ(TM)s just stuff that takes a long time. Specifically, itâ(TM)s just trying lots of computations and seeing what works. We havenâ(TM)t done it before because the space (pun intended) to explore for this particular optimisation problem is *huge* and we donâ(TM)t have very good tools for figuring out the global minimum.

Comment Re: Let me guess.. (Score 1) 77

I donâ(TM)t think thatâ(TM)s the likely cause at all. Instead, Iâ(TM)d expect one of two causes:

1. Lead not being anywhere near as prevalent in the environment

2. Flu vaccination rates. Alzheimerâ(TM)s has been linked to severe flu earlier in life relatively recently, so the fact that weâ(TM)re generally more likely to have had vaccinations, and thus less likely to have had severe flu likely lowers the risk of that particular form of dementia.

Comment Re: "Acceleration is expanding"? What? (Score 2) 59

âoeExpansion is acceleratingâ is indeed the correct way to understand it. Not only that, but that acceleration is dropping over time. Itâ(TM)s a result that there have been vague hints of for a while, but that weâ(TM)re now at 4.2 sigma on. Not quite a âoeresultâ but getting pretty confident. Itâ(TM)s pretty high up on the scale of âoethis breaks everythingâ because pretty much the first assumption in lambda CDM is âoelambda is a constantâ.

Comment Re: Yes yes (Score 1) 59

I mean, youâ(TM)re kinda proving his point too though. The point of this article is not that thereâ(TM)s a new model, itâ(TM)s that weâ(TM)ve entered that stage where thereâ(TM)s a clear need to come up with a better model, because itâ(TM)s become apparent that Î is not a constant. We only really entered this stage this year. Now we need to spend a while coming up with ideas that fit the data better and are still useful.

Comment Re: Dependency and Chaos (Score 2) 36

Are you really likely to find out that Google is showing a mass closure though? Instead I think itâ(TM)s far more likely that youâ(TM)re just going to get directions that avoid one highway, and youâ(TM)re going to go âoeOh, I guess there was an accident or somethingâ. Assuming that people have the complete information even about what google said was closed is going to give you some wild and weird conspiracy theories.

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