1,509 karma · joined August 28, 2010
I’ve got a handful of forged 240mm ryoba annd dozuki in my shop that are notably thinner than disposables according to my digital calipers
> And 2x4 stick framing with metal fasteners is also a thing in Japan, having gained popularity b/c of its simplicity in recent decades.
Agreed. I’ve heard nearly all new construction is stud construction these days.
> Most japanese planes wouldn't be able to handle Maple or Hickory, to say nothing of the harder exotics.
I often see this repeated in online woodworking forums but my experience here has been different albeit limited to kanna blades from two makers.
> I'd put 18th century european fine furniture against japanese fine furniture any day. It's not until the 20th century that you saw a decline in western skills.
Agreed here too. Furniture studies from that time period make this evident. Western tools from that time period don’t differ as much either.
I think we agree here but the unspoken measure is the amount of uncertainty in each forecast. This is still a very inaccurate prediction compared to the collision detection system which nearly always gets it right.
You hit the nail on the head in your last paragraph. Doing something useful doesn’t require an accurate prediction. I agree entirely that assigning an appropriate cost function and responding accordingly guides you to useful actions.
Edit: Just discovered your blog through your profile. The topics look super relevant to my interests. Thank you for sharing your thoughts online, I’m looking forward to reading them!
Meanwhile the examples from the linked article are fat tailed processes. Recessions, GDP, interest rates, exchange rates. These are all subject to large discontinuous jumps. Anyone doing a 5 year rate prediction in July 2019 would have been required to predict the pandemic in order to accurately forecast. This is a single example but predictions in this domain are regularly blown out by being teleported to a completely different world. Unlike the thin tailed domain these events happen frequently enough that they’re the only thing that matters for the forecast.
Knowing which class your generating process belongs to is critical to understanding whether forecasting will be effective or not. I’ll take collision detection and leave economic forecasts at the door any day.
Probably this.
Functionally speaking when a company issues a dividend of $x the stock price S will drop to S-x on the ex dividend date. This makes sense as the company now has $x less per share. The shareholder is at a wash as well. They had S before and now they have S-x+x. No value was created, money was simply moved.
Given the above you can more or less value dividends using discounted cash flow. A ~3% dividend is CSCO’s case isn’t worth paying more (increasing the share price over) on its own because the cash used to buy the shares is worth ~5.5% today according to the risk free rate.
In fact if one were considering the dividend alone then the company should be worth less. Obviously factoring in future growth, etc… the market has landed on the current price.
https://amp.cnn.com/cnn/2023/03/27/business/binance-cftc-law...
Words like wrong, disagree or even lying don’t express this sentiment. They give the person who disagreed with you a pass on what they really are: A manipulator who is attempting to assault your psyche and break you down.
I really hope we as a society get out of this mode of thinking soon. I’d love to be able to have rational discourse again in my lifetime outside of a very small circle of trusted people.
I’ve got crypto enthusiast friends who refuse to use hardware wallets because of the inconvenience.
I’d be surprised if the person who said this meant it was a good thing. The sentence literally acknowledges a similarity between crypto and traditional finance. Yet instead of taking those lessons and implementing the solutions the crypto space insists on making the mistakes over again and maybe learning the lessons. The cognitive dissonance in this space is intense.
To look at an extreme example… were all the “yes” votes 95%+ certain and the “no” votes just under the line 49%? Or was it more like a bunch of no votes at 49% and a bunch of yes votes at 51%?
Binarizing forecasts necessarily discards information. Aggregating a bunch of binary predictions into a percentage does no recapture said information, unfortunately.
Would love to see results presented with the uncertainty quantified. Especially given that the yes/no questions are aggregated binarized predictions from what is almost certainly a collection of continuous models. A lot of information is lost between the people performing the analysis and either of these pages.
This problem is usually considered from the other angle: if variance is high but the odds are unfavorable you should favor fewer bigger bets over many smaller bets. Why? Because the more bets you make the more likely you are to converge onto the expectation. A single big bet leaves you either running way over expectation or slightly under it. All of this assumes that you have to bet though, the safest thing to do with negative expectation is to just not bet.
His example is unusual in that it has positive expectation (so you want to bet) and high variance (because you’re limited to a single bet). f(x) = 0b or 10000b so the single sample has a mean of 5000 and a variance of 50,000,000 but the E[f(x)] is 7500. A bigger than Kelly bet is rational here but if you had unlimited (or a large number of) bets you should revert to Kelly.
Food for thought.
Bold statement by tether given that they, if I recall correctly had a very extended period in their past (months) where they were not allowing withdrawals. Wether they openly stated that or not is irrelevant, plenty of people could not get money out.
A short call spread is someone selling calls (option A in the link) and buying insurance on said sale (option B in the link).
If you want something more financial a short vertical spread [0] is a strategy in which you are purchasing insurance on the risk (investment) you just took (made). There are many such investments of this form.
[0] https://www.optionsplaybook.com/option-strategies/short-call...