ai things @_hex_tech // prev @ramp @uber. amateur musician. tweets are my own bayesian opinions.
San Francisco, CA
Joined October 2012
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ravit retweeted
"a + b", this one line of Python code executes thousands of lines of C behind the scenes. My latest article explains what goes on in the CPython runtime to execute this seemingly simple operation. You will learn about:
- Dynamic dispatch implementation in CPython
- What is the abstract object interface in CPython and its role in dynamic dispatch
- What is the PyTypeObject struct and its role in the CPython runtime
- How the various types in CPython implement operators and make them available to the runtime for dynamic dispatch to work.
- And, look inside the implementation of the float type to understand this more concretely.
The article includes 13 annotated code listings from CPython with all the explanations. Check it out: open.techwriters.info/codeco…
ravit retweeted
BIG TRANSIT FUNDING UPDATE
Last night, the Senate & Assembly released our budget, including most of the agreement on transit. We vote on Thursday.
The agreement is a strong step to address the transit operations fiscal cliff. More work remains, but this is good progress.🧵⬇️
ravit retweeted
My favorite econ paper correlated the unpaid parking tickets of UN diplomats in NYC with the UN corruption index. They have diplomatic immunity so don't need to pay the tickets, but people from low corruption countries paid anyways.
ravit retweeted
It's a legit concern for anyone coming in. If history holds, he'll micromanage certain things -- or swoop in with sudden demands/ideas -- while also giving broad latitude on other things.
ravit retweeted
SCOOP: Net energy gain in a fusion reaction has been a holy grail in science for decades. Now I’m told US scientists have done it. A massive breakthrough with revolutionary potential for clean power. US Energy Secretary to hold a press conference Tuesday on.ft.com/3PgDdya
ravit retweeted
I wrote about the new anti-obesity drugs—semaglutide (Wegovy) and tirzepatide (Mounjaro)—that represent one of the most important breakthroughs in medicine
erictopol.substack.com/p/the…
ravit retweeted
Some events that took place in the same time in history but don’t seem like they would have:
“1971: The year in which America drove a lunar buggy on the moon and Switzerland gave women the vote”
Tbf gig worker jobs in India are one of few labour jobs you can get without outright discrimination on caste, religion or gender.
1/7 On labor exploitation from last tweet🧵
Zomato/Swiggy are highly unprofitable businesses.
Pay delivery partners more, prices increase. Prices increase, users decrease.
Users decrease, fewer jobs.
500k+ drivers in India making 1.5L+ yearly. Fewer jobs, worse income for them.
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ravit retweeted
Dear Apple I am not able to keep track of and get back to conversations across 10 apps. Needs some OS-level help to sort notifications into fyis and todos that you can sort through, mark as “unread” and deal with when you’re able. Sad as the concept is.
“Our nation has a housing crisis”
He writes while blocking multi level housing projects in his own neighborhood.
New A16Z investment into an Adam Neumann real estate startup just dropped a16z.com/2022/08/15/investin…
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