fdrake

To clarify: let's imagine that someone's repeated a measurement of a mass twice. They've written both down. The first measurement I'll call "a", the s...

Feel free to ignore or take this to PMs if you believe this is too much of a side issue @"Kenosha Kid". Very skeptical of that. Whether a quantity can...

Aye. All the "i" is doing when thinking of C as a 2d vector space over R is keeping track of the second coordinate. It is an isomorphism of vector spa...

Regarding the imaginary numbers can't be physical thing, and the problem being having an imaginary part. Complex numbers form a 2D vector space over t...

Another self indulgent spitball from me. Thank you for the free physics lessons. What stops complex quantities from being physical?

Closing it again. Seeing as it immediately derailed.

Probably a stupid question: if the mapping from a wavefunction to it times its complex conjugate always produces a purely real variable, and that the ...

What can I say, my bar is high. No anti-semitic conspiracy theories. Truly a huge expectation for any enlightened mind.

Oh so he was. I wonder why they keep coming back.

Since it came up, I banned @"bccampello". Who is returning banned member @"Bruno Campello", also @"BrunoCampello" also @"bcccampello" among others. I ...

I would guess that the Plush Forums servers have a priority system for operations. Putting a post on site I guess will have a higher priority than upd...

For some reason I doubt that those types of cereal meet the exacting standards of the Proud Boys.

What is necessary to count as explicit enough?

I don't have an account any more. I had a look, it doesn't seem like an attribute someone can fill in on their page any more. Regardless, would making...

It already happened to EU citizens didn't it? Facebook lets you target people based on ethnicity. It included it as a targeting demographic explicitly...

You'd enjoy the report I linked to frank above. It's actually adjusting for economic variables in the context of police killings.

Aye. Relevant report.

Not from what I looked at for the above.

A better naive hatchet job of the numbers would at least adjust for per-capita rates by making an odds ratio. The percentage of the population numbers...

At its best, a gotcha takes a weak point in an account and shows it for what it is. At its worst, a gotcha is actually a sophisticated means of perfor...

:up: If and when it happens? Tesco's law of fash encroachment: every little helps! Muslim ban, state endorsement of white supremacist militiamen vigil...

Well, there's more than one problem then. Whether people are stupid is a different concern from encroaching fascism and the risk of it.

I don't think the fears are crazy. He expressly doesn't want to commit a peaceful transfer of power if he loses the vote and can get away with it. Fro...

That's one of those books which is in dire need of a Miracle operator. (vague description of mathematics) A miracle occurs. Now you try!

Nah. Couldn't see my partner for a while, travelled to see her, quarantine restrictions got reimposed while I was here!

I'll be in quarantine for a couple of weeks soon. I shall try and get the field of real numbers with its order defined in that time.

That's roughly where I started - gesturing in the direction of formal languages (production rules on a collection of strings).

So you'd need linear operators on vector spaces, differentiation+integration, complex numbers... If I gave you definitions of those things, would you ...

Are you talking physics field or mathematics field? Field as a mapping from, say, the plane to vectors in the plane (physics field), or field as a com...

There's likely going to be some effort to make the early votes not count?

There should be a sound effect for a field flying over another mathematician's head. ? ? ? WHOOSH I have no idea!

I only really know the story up until "this is a differential equation with real variables". Complex analysis stuff and actual physics is mostly above...

Parsed it wrongly - Fred suddenly stops being in pain, a pain of which he was unaware. He isn't just certain of it; as it it were just an epistemic st...

Thank you! I've been thinking about going back to it for some time now. I probably will. It would be nice to have one way of telling the story in one ...

Lots of people asked me to help them with their homework when I was at school and uni! Never could say outright no to it. Unless someone wanted me to ...

(4) has "as a consequence" of something in (3) in it.

(1) I was in pain up until time t. (2) I did not realise I was in pain before t+1. (3) I stop being in pain at t+1. (4) I realise that I was in pain a...

@"SophistiCat" gave me this reference in a thread a while ago. It talks about what philosophy can learn from special relativity.

Why not both?

And if someone really had stopped being in pain? Would you infer that they were in pain just prior to then?

I don't think it's any more question begging than: Alice: "I saw Jane today" Bob: "How do you know?" Alice: "I saw her." Have you stopped beating your...

Eh, you could argue that I've never experienced something which could appropriately be described as "I have stopped being in pain now". That's not som...

"I have stopped being in pain now" -> "I was previously in pain" Similar to: "I have stopped hearing the storm" -> "I previously heard the storm" Look...

Constructing win farms isn't carbon neutral, but neither is constructing fossil fuel plants. They take less to construct now AFAIK - they're much ligh...

Looks like people with UK bank accounts living in the EU/EEA might get their UK accounts closed after the transition period ends. Too little progress ...

Maybe an aside, but: that a person cannot be said to learn of their sensations in a way that is distinguished from simply having them is something tha...

Thank you! Though in context I am left with the impression that my response will raise the probability of @"Ignoro" ignoring medical advice. Which sho...

Maybe there isn't one? I'd understand a contributory cause in one of two ways depending on context. One of them is: a contributory cause of X is a mem...

@"Zn0n" @"schopenhauer1" For the record, there isn't good evidence that Zn0n and Schop the same user.

Google is practically Yog Sothoth at this point: