Recent submissions

Comment · 10 months ago
Epicycles in a geocentric model of the solar system is another way of looking at planetary motion. It breaks down due to the required addition of complexity to explain discrepancies between the model and truth, which is the same for this particular situation. In addition to what the CPA said, how does this model work with callable, putable, or floating rate bonds where the interest payment is not known up front?
Comment · 1 year ago
No it isn’t! The headline they used is “Protecting Our Customers - Standing Up to Extortionists.” My issue with it is that they word their announcement in a way that leads people to congratulate them instead of saying we’re sorry for leaking your private information. I’m so angry at them over this.

Additionally the email they sent me had the subject “important notice” and that my personal account was affected as the third sentence in a rather wordy paragraph. None of this is ok and this is not a company taking this seriously.

Comment · 1 year ago
My iphone can't kill someone else moving 70 mph down the highway during the normal course of its operation.
Comment · 3 years ago
Blackstone was never a division of Blackrock
Comment · 3 years ago
Blackrock is not buying individual houses. Are you confusing them with Blackstone, who did own a unit that bought and rented single family homes?
Comment · 4 years ago
Think of it as the opportunity cost. If interest rates are high, I can go out and buy a us gov't bond at x% risk free. This makes other investments that maybe looked attractive at lower interest rates less attractive now, and this is reflected in the lower npv value.
Comment · 6 years ago
No one else does what the USPS does. No one else does daily rural mail delivery. The USPS is also not tax subsidized.
Comment · 6 years ago
A solar sail doesn't work via aerodynamic lift. It works on conservation of momentum. Also, the biggest contributor to force on a solar sail is not solar wind, but radiation.
Comment · 6 years ago
I imagine that, just like airlines use futures to hedge the price risk of jet fuel, they do the same for their vast logistics operation. They can lock in prices so they aren’t suddenly facing a massive bill if gas goes way up.
Comment · 7 years ago
It is different though. The FDIC would force the bank into receivership and return the insured money to account holders. That doesn’t exist for tether.
Comment · 7 years ago
Philip Greenspun is not a no one when it comes to aviation.

https://philip.greenspun.com/flying/resume

While he doesn't have 737 experience, he's far from an armchair quarterback.

Comment · 8 years ago
Comment · 8 years ago
I know quite a few finance companies use it - Morgan Stanley and Goldman Sachs come to mind.
Comment · 8 years ago
It’s largely there to sound scary. While stocks can have their exposure measured based on their face value, derivatives cannot. For example, you could have a 100 million interest rate swap, where you either pay or receive the difference between a floating interest rate and a fixed interest rate depending on their values. You’ll never get close to ever losing or gaining 100 million dollars, and that 100 million is never exchanged, but you still have that much exposure.

To further complicate things, these banks may have hedged their exposure, meaning they may have an equal but opposite interest rate swap. Now they have 200 million of exposure, but no matter how the interest rates have changed, there’s no risk (all of this assumes no counterparty risk, which may or may not be valid, but for now ignore it).

Comment · 9 years ago
Newt Gingrich too on Parks and Rec.

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