SERVING THE QUANTITATIVE FINANCE COMMUNITY

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by katastrofa
June 18th, 2020, 10:02 pm
Forum: Off Topic
Topic: Stupid question of the day
Replies: 2273
Views: 162673

Re: Stupid question of the day

What is a decent annual return from a first-world index tracker? (from the past several years)
by katastrofa
June 18th, 2020, 8:46 pm
Forum: Off Topic
Topic: A Music Game II for 2009
Replies: 2901
Views: 335081

Re: A Music Game II for 2009

Beth Hart and Joe Bomassa, ditto: https://www.youtube.com/watch?v=cZAT-7j0pyo I seriously love this woman. Another one from her concert. After 6min: https://youtu.be/bOQ07fVVDJQ?t=373 I can't find the recording on yt of the little jam session by Beth, the guitarist and the drummer, Bill Ransom, whic...
by katastrofa
June 18th, 2020, 7:25 pm
Forum: Politics Forum
Topic: Trump -- the last 100 days
Replies: 3525
Views: 183079

Re: Trump -- the last 100 days

That's what I was talking about!
by katastrofa
June 18th, 2020, 11:46 am
Forum: Politics Forum
Topic: Trump -- the last 100 days
Replies: 3525
Views: 183079

Re: Trump -- the last 100 days

Maybe he's tylkov a clockwork orange? Bog help us all! (I still don't like Burgess. The book is a pop art trashbin of meaningless memes. The argot he "invented" is merely a bunch of transliterated - often incorrectly - Russian words. Gosh, why am I so negative today?)
by katastrofa
June 18th, 2020, 10:24 am
Forum: Off Topic
Topic: All about Cats
Replies: 977
Views: 98872

Re: All about Cats

So cricket can be interesting after all?

My cats can't be outsourced to give a damn, really. Not that I complain: my mornings
by katastrofa
June 18th, 2020, 12:31 am
Forum: Off Topic
Topic: All about Cats
Replies: 977
Views: 98872

Re: All about Cats

Squaring the cat?? Long ago I came home from a mathzy-schmatzy lecture and played with my cats. Seeing how precise jumps they make to catch the toy on a line I realised that their instinct is a perfect solver of differential equations. And they are better at passing these skills to their children an...
by katastrofa
June 16th, 2020, 8:23 pm
Forum: Off Topic
Topic: Melodic Metal
Replies: 478
Views: 64462

Re: Melodic Metal

by katastrofa
June 16th, 2020, 8:13 pm
Forum: Off Topic
Topic: Bad things that come out of this pandemic
Replies: 71
Views: 6979

Re: Bad things that come out of this pandemic

Just make sure you've offspringed before steroid intake. 

Beat the drums,Boris?

What's so special? Steroids were _always_ used for respiratory problems.
It's cheap and widely available. Doesn't matter it has lethal side effects. Just like the mindless intubation.
by katastrofa
June 16th, 2020, 8:05 pm
Forum: Off Topic
Topic: Quantum everywhere
Replies: 44
Views: 12388

Re: Quantum everywhere

We make the science of what we see, and if we measure something new (a discovery) with devices which operate on our science, is it the truth - would we measure something else if the science which led us there was different? Part of QM effects is due to Kolmogorovian probability theory not applying t...
by katastrofa
June 16th, 2020, 7:02 pm
Forum: Off Topic
Topic: Quantum everywhere
Replies: 44
Views: 12388

Re: Quantum everywhere

The other way around! Majority of the effects I listed wouldn't be feasible w/o p-n junctions :-) BTW, I forgot to mention my fav quantum device, SQUID. I was never allowed to touch it, and preferably not let into the lab - or even the whole lab level of the institute building, because of the suspic...
by katastrofa
June 16th, 2020, 6:38 pm
Forum: Off Topic
Topic: Bad things that come out of this pandemic
Replies: 71
Views: 6979

Re: Bad things that come out of this pandemic

British scientists make a "major breakthrough": Coronavirus: 'Major breakthrough' as UK scientists find £5 steroid cuts COVID-19 deaths  In essence, they found that a corticosteroid stops the cytokine storm due to covid. Interestingly, a couple of months ago caution was advised by Chinese researcher...
by katastrofa
June 16th, 2020, 3:49 pm
Forum: Off Topic
Topic: Quantum everywhere
Replies: 44
Views: 12388

Re: Quantum everywhere

LASER is quantum (stimulated emission/electron transitions between quantised energy levels) Staying at Einstein, all sorts of detectors and other devices using photoelectric effect Esaki diode is quantum (tunnelling) BTW, I've met Leo Esaki! IMHO, he's the humblest and truest of true scientists. Tho...
by katastrofa
June 16th, 2020, 3:20 pm
Forum: Off Topic
Topic: white lightning
Replies: 45
Views: 21093

Re: white lightning

In the original SIR, you don't model comorbidities explicitly. Including them requires modelling the structure of the affected population, i.e. stratifying the population into groups with/without comorbidities. Say you have a population of susceptibles S, who are at the same risk of catching the di...
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