
Owen Grohman
7.4K posts

Owen Grohman
@Grohman
you are what you tweet, so tweet what you can


I'm doing some back of the envelope math on buying vs renting. Say you buy a $1M house with 20% down at about 6% mortgage rate and plan to stay there for five years. Your principal paydown in the first five years is about $57,000, but you've paid about $230,000 in interest. You've also paid roughly $100,000 in property taxes, insurance, and maintenance. Say the house appreciated 2.5% every year — so when you sell it's worth about $1.13 million. Your all-in costs to sell are about 7.5% — brokerage commissions, transfer taxes, attorney fees, title insurance, and the inevitable post-inspection negotiation. On a $1.13M sale that's about $85K in fees. So you net about $1.046M. You still owe $743K on the mortgage. You walk away with about $303K in cash — your $200K down payment back, your $57K in principal, and about $46K in net profit from appreciation. Your non-recoverable costs — interest, property tax, insurance, maintenance — were about $330K over five years, or about $5,500/month. That's your effective rent. But you "made" $46K selling, or about $770/month — so your effective rent was about $4,700/month. Not bad, but you tied up $200K for five years to get there. And if appreciation was 1.5% instead of 2.5%, that net gain basically disappears and you're paying $5,400+/month in effective rent. And this assumes there's appreciation at all — and that something doesn't go wrong with your house that needs a major remodel or repair. On a five-year horizon at 6% rates, you need everything to go right on appreciation just to make ownership competitive with renting. The transaction costs eat most of your upside. What am I missing? Anything?


Make the games 40 minutes. 8 x 82 / 48 =13.667 That’s the equivalent number of games you would reduce the schedule by. Without breaking arena leases. Works for college. Works for international. Works for the WNBA. AND. If you looking at tv and streaming ratings, the less the actual playing time for a televised game, the bigger the ratings. Ie, the less time fans have to focus on a game, the more they enjoy watching it on tv

LeBron's early struggles. A glimpse into the mind of a champion.

Reminder that the United States could have been the world leader in 5G technology instead of China if we had just given *one guy* a green card when he needed one.



One common issue with personalization in all LLMs is how distracting memory seems to be for the models. A single question from 2 months ago about some topic can keep coming up as some kind of a deep interest of mine with undue mentions in perpetuity. Some kind of trying too hard.

I had dinner once with a top physicist and a top computer scientist and asked what they thought the probability was that we were in a simulation. They answered simultaneously at 0% and 100% respectively. It was like a double-slit experiment, but with humans.


Boston Celtics center Nikola Vucevic has sustained a fractured right ring finger.



Reflex Robotics is testing a robot designed to handle real-world manual labor, such as snow shoveling ☃️@NYCMayor



A New York bill would ban AI from answering questions related to several licensed professions like medicine, law, dentistry, nursing, psychology, social work, engineering, and more. The companies would be liable if the chatbots give “substantive responses” in these areas.

One of the most poisonous tactics the young groyper/alt-right use is a form of weaponized irony, where they're always joking and memeing, they refuse to openly state their beliefs. I think about this Sartre quote *all the time* these days. He clocked them decades ago.








