Can any Apple engineers shed some light on why they've made it impossible to reset broken bluetooth state?

Comments URL: https://news.ycombinator.com/item?id=47050623

Points: 5

# Comments: 0

Cheney was a war profiteer who engineered wars that killed at least hundreds of thousands and probably over a million people.

I'd say the assessments are accurate. [^0]: https://en.wikipedia.org/wiki/Fulgencio_Batista

What does this even mean? Do you think in an ant colony only the queen is needed? Or in a wolf pack only the strongest wolf?

Comments URL: https://news.ycombinator.com/item?id=43570685

Points: 2

# Comments: 0

This is for the simple reason that prices more or less only communicate information about the amount of labor required to produce a thing[0].

Therefore prices on their own are, for example, incapable of transmitting information about what action needs to be taken to correct the relationship to the biosphere. Information about the state of the biosphere will only enter into prices to the extent that things start taking more labor to produce. But there’s no market mechanism that would then cause that to direct action towards stabilizing the climate.

[0]: This is because cost resolves into business owner’s cut + labor cost + cost of inputs, and the inputs can recursively be split into the same until you’re left with the amount owners take, the amount paid to workers, and the amount paid to owners of natural resources.

The business owner’s cut and the amount paid to owners of natural resources are socially determined and bear almost no relationship to the physical world or reproduction of society.

Second and more importantly, it seems very difficult to start with the decomposition into cyclic groups and then choose a map from the multiset group into the permutation group that corresponds to the given decomposition in a good way.

Relatedly, the isomorphism between the image of phi (i.e., the action of accumulating hashes) and the decomposition into cyclic groups may be difficult to compute, which can make finding collisions infeasible for an attacker when they could do it easily if given the explicit representation.

So overall the conclusion that “you might as well make this forced structure explicit, and just pick the block structure you want to use in advance” seems incorrect.

The blog post someone linked on multiset hashing with elliptic curves proves the foregoing points. The cyclic groups do not have power-of-two orders and the group action is very complicated even though the description in terms of elliptic curve addition is quite simple.

   def f(s):
     assert(s[0] == 'T')
     return s[1:]

  def f_inverse(s):
    return 'T' + s

To use Venezuela as an example, the author says no one has tried to invade it (which is actually not even true, see below) but also the US has been imposing crippling sanctions for over 15 years in an attempt to punish the people and weaken the government.

Moreover there was a US supported coup attempt in 2002 and one basically cooked up entirely by the US in 2020 (Operation Gideon). This was a plan to actually invade the country by boat with a small force to try to take control of the government.

This is part of a pattern of behavior for the US in the 20th century. The book Washington Bullets does a good job cataloguing the various interventions of this form.