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practicemaths

180 karma · joined December 11, 2023

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practicemaths··on Mark Zuckerberg unveils giant Roman sculpture of his wife – AP News
Bezos is funding this:

https://en.wikipedia.org/wiki/Clock_of_the_Long_Now

practicemaths··on Hackers may have leaked the Social Security Numbers of every American
Simple. American society tends to value blond white girls more.

Notice you didn't question what the gender of the grandchild.

practicemaths··on NASA investigation finds Boeing hindering Americans' return to moon
Oh, so there are other means or systems that are good or even better, i.e. more sufficient to fix or improve society than just blind competition. Got it!
practicemaths··on No-car Games: Los Angeles readies for its 2028 Olympics closeup
45,000 homeless people.

“We will get people housed. We will get them off the street. We will get them into temporary housing, address the reason why they were unhoused and get them into permanent housing.”

Does not sound like much of a plan & is not very reassuring.

I frankly expect they will push or bus people out and call it a day. Out-of-sight out-of-mind solution.

practicemaths··on Google Pixel 9 Pro
Another user posted in above

"As of 2023, the global average replacement cycle length for a smartphone is 3.6 years."

I'm not disagreing on a technical level. I agree. I use a pretty cheap ass phone myself that I bought off the rack.

I think it's clear though that phone makers and telecom companies are more than happy to sell people a new one every few years and intend to continue doing that.

practicemaths··on Google Pixel 9 Pro
Yes, your personal experience is not the same for the average consumer class. Which is the majority of phones & cars are designed for and sold to.
practicemaths··on Google Pixel 9 Pro
Do those same cars have 0 problems with them and not require any scheduled maintenance in those 13 years?
practicemaths··on Google Pixel 9 Pro
Yes, but the automakers and car salesman aren't selling to you.
practicemaths··on Google Pixel 9 Pro
People trade in cars every 3 years. I imagine it's similar to phones. Plus phone battery life does degrade pretty heavily over time and heavy use.
practicemaths··on NASA investigation finds Boeing hindering Americans' return to moon
So, if competition is supposed to fix other aspects of the economy, why is healthcare disproportionately high compared to other things?

There are several hospitals around me. Endless amount of doctor offices. There are several health insurance companies I can choose from. There is competition. Yet, prices are not affordable for most.

practicemaths··on NASA investigation finds Boeing hindering Americans' return to moon
So, competition benefits consumers, which are a subset of society. Say that instead.
practicemaths··on NASA investigation finds Boeing hindering Americans' return to moon
I do not understand the statement "Everyone would benefit from competition".

How is that not an oxymoron?

Surely those that do not win in a competition are losers. How is that a benefit to them?

practicemaths··on Additive manufacturing of an ultrastrong, deformable aluminum alloy
In the abstract:

"Light-weight, high-strength, aluminum (Al) alloys have widespread industrial applications. However, most commercially available high-strength Al alloys, like AA 7075, are not suitable for additive manufacturing due to their high susceptibility to solidification cracking."

practicemaths··on Ask HN: Can you identify as "raceless" while living in the US?
This is very highly dependent on where you live in America.
practicemaths··on The US fiscal mess: Some unpleasant fiscal simulations
Too bad there aren't County and other elections out there.

It appears that Palo Alto has elections for city council every 4 years.

Here's an election guide:

https://www.cityofpaloalto.org/Departments/City-Clerk/Munici...

https://www.cityofpaloalto.org/Departments/City-Clerk/Munici...

practicemaths··on Melting ice is slowing Earth's spin, shifting its axis and influencing its core
You really need to go back to school.
practicemaths··on McDonald's sales fall globally for first time in more than three years
In 10 years, $10 Big Mac is going to seem cheap.
practicemaths··on The US fiscal mess: Some unpleasant fiscal simulations
It's not too expensive to start paying for fundraising dinners for your local representatives, mayors, congress persons, etc.

You can help get people elected into local positions that align with your interests. AND some of those people will continue to build their career in politics and may become Senator or Governor someday.

That's influence. That's buying into the system to make it how you think things will be better.

practicemaths··on The US fiscal mess: Some unpleasant fiscal simulations
One side is willing to raise taxes on billionares and continue to have democracy. The other not so much.

your argument stopped having any semblance of merit at least decade ago. Now it is laughably unbelievable.

Now, ought there be more direct representation? Of course!

Should we have more than two major parties? Of course!

Guess what, a lot of people on this forum I am sure make plenty of money to be able to afford going to a few fundraising events for local politicians that they favor.

Y'all have influence here if you want to use it.

practicemaths··on Melting ice is slowing Earth's spin, shifting its axis and influencing its core
Short video lesson for you:

https://youtu.be/M6PuutIm5h4?si=RmUV7D74DYfPoY2l

practicemaths··on Melting ice is slowing Earth's spin, shifting its axis and influencing its core
Hmmm I did not realize conservation of momentum was absolute hogwash. News to me.
practicemaths··on 370-mile hydrogen-electric seaplane set to clean up island hopping
Without having specific numbers in front of me, yes fuel cells are delivering comparable power as batteries. Plus the hydrogen is lighter than batteries.

Combusting may save on some of the complexity fuel cells but you are losing efficiency in heat losses, both from the act of combusting and with gears that deliver the power to your wheels or propeller.

practicemaths··on Human parasites in the Roman World: health consequences of conquering an empire
I think contextually it depends.

If you compare rural living to urban living, then maybe you could say latrines and baths contributed to increase in parasites.

However that's a bad comparison.

What would be better is compare similar levels of urbanization (population density) with and without latrines & baths. I imagine the latter may be more sanitary.

practicemaths··on Many US solar factories are lagging. Except those China owns
How though?

If people are maximizing return with the system the way it is, where is the incentive to actually change this on a large national scale?

Who's going to fund this change?

A few with populist rhetoric getting power is not achieving what you want.

practicemaths··on Many US solar factories are lagging. Except those China owns
How does this address the issues of incentives, or rather lack thereof?
practicemaths··on Many US solar factories are lagging. Except those China owns
Where is the incentive to do otherwise?

Whom is going to fund multiple executive and legislative candidates to get this done?

Not trying to dismiss your point outright, just while it's a good notion, I for one do not see a practical way of changing towards that on a large national level across multiple industries.

practicemaths··on Math is running out of problems
> It runs on coffee

Or for Erdös, amphetamine.

Also I find it ironic to fro them to gripe about alleged "hyper-specializatiin" given that part of the beauty of Math is discovering how seemingly unrelated areas are in fact connected AND discovering generalizations that can be easily applied.

Caveat, I am no where close to being a mathematician.

practicemaths··on How to validate a market with development boards and SD cards
"The testing and certification industry is odd. In theory, it exists to serve the public good and uphold consumer protection laws. On the other hand, its customers are in the private sector. Normally, market forces would dictate that by now it would be straightforward, fast, and affordable to get your product tested as frequently as desired. However, in reality, the labs are “too busy” to respond or reply very late and generally sound less than eager to work with you. Not to mention, the fees that they quote are rarely palatable to a bootstrapping startup. And yet, working with them is generally required to get your product to market."

Market forces naturally determined this outcome though. If you're big companies you naturally want to limit the threat of new competition. Making compliance more costly achieves this.

practicemaths··on The Life Of Lithium
There's growing commercial use of EVs. These will be driven harder and longer. They will not last 10+ years.

The point that you're missing is that you can extend a packs life with a secondary application. That secondary application can make the cost of its first use lower making EVs more easier to adopt.

This requires more and more material. However we can recycle this material back through tearing it apart, which is a costly process.

It would be better to recycle a pack to its base material later than sooner. So the second life use allows for delaying the teardown & reclaiming process.

practicemaths··on FDA warns top U.S. bakery not to claim foods contain allergens when they don't
TBF laziness is the natural order to the universe. Ain't nothin doin more than it has to.
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