He is a top expert on a security topic. Running Android platform security gives him an opportunity to have incredible positive impact for many people---which he did for a decade.
People weigh trade-offs.
At the beginning, he may have had high ambitions to deploy interesting, research-forward ideas to Android; at this point, he has accomplished a lot of that. Maybe now, he is considering other factors.
Guessing that people are only money-driven or have made some decision because of threshold personal wealth is awful, especially if you do not know them.
Almost all academics I know (I am one also) are driven by personal curiosity, intellectual ambitions, a need to identify and solve problems, and a strong desire for positive contribution. I know Rene and believe this to be true of him.
(1) in this case, an identity issuer provides the source of truth identity information. Examples include state DMV, your passport (you can try "Id pass" in Google wallet), etc.
(2) One of the goals of this project was to layer ZK on top of current identity standards that DMVs already issue, so that gov orgs don't have to change what they currently do to support the strongest user privacy. One example format is called Mdoc.
(3) The user holds the identity information on their device only. No other copies. The user's device makes the zkp proof on-device. This was one of the major technical challenges.
(4) The relying party (eg a website) runs the zk verification algorithm on the proof that is produced by the device to ensure soundness.
(5) Yes, the user can use any compatible implementation to produce the proof. We have open-sourced our implementation and we have a spec for the proof format that others can also reimplement.
"Thousands of scientists are cutting back from Twitter"
Essentially, a survey published in Nature about twitter usage among scientists dropping, in part, because of the phenomena mentioned in this New Yorker article.
Eg:
"Žiga Malek, an environmental scientist at the Free University of Amsterdam, mentioned in the survey that he had started seeing a lot of “strange” political far-right accounts espousing science denialism and racism in his feed. He has to block them constantly. “Twitter has always been not so nice let’s say, but it is a mess right now,” he said."
This is a case study for an undergrad statistics or responsible journalism class.
* for traffic see the small note "all values rebased to 100"
they are likely hiding the significance of the increase
* for the app downloads graph:
does the 30x gap say anything?
are there seasonal reasons that can explain why every Jan1--Feb4 has more DLs than Feb4--Mar11 ? e.g., new phones?
i certainly don't do clickbait. no links to the original or anything. i thought the content was this observation. i'm trying to use whisper.cpp to get transcripts for the older ones.
i was skeptical. But these four probably do 100 meetings a week each, many about new deals with new founders. They hear a lot of smart ideas and the best of those are going to leak out when the videos are all about trying to sound smart.
From that, about 1.3% + 5c per tx go to interchange + assessment fees.
This leaves about 1.6% + 25c for the payment processor.
14.3 on 816b is about 1.7% which is consistent.
On 1T, that means about 17b in revenue.
Lets assume they have 7000 employees (i've seen 6000-8000 in searches). As rough estimates, these SFO-based SWEs + knowledge workers cost 1m/yr on average (which includes their total comp, insurance, federal + state taxes, and operating overheads amortized over all employees). So their cost of labor may be around 7-8b/year.
They may have other acquisition and marketing costs, but it means the co can feasibly be earning >8b before taxes, depreciation, amortization, etc.
That number could justify a 80b valuation.
If their current round cap is 55b, then my #s on costs are off, or the multiple has dropped to 6-7. Please debug.
Perfectly conceivable that Arvind is punking us all by using an Llm to write that essay. Very basic stuff for someone who usually has subtle points to make.
A Turing Award winner (keeping it anonymous) related a similar story to me about his phd qualifier exam (when I was taking mine). This winner is a theoretical computer scientist who skipped most of his computer hardware courses. Near the time of his graduation, he was informed that he needed to pass a hardware course because it was required for graduation.
He worried; his advisor begged the hw professor to give him an oral exam in place, because he was a promising candidate with a faculty job already lined up and incredible published results.
Unlike Wein, the hw professor was happy to oblige and created a basic oral exam, suspecting that the student was destined for greatness.
The student desperately tried to cram the hw textbook, but his heart was simply not into the subject. He did however, get the main point of the entire field.
This is when the funny part of the story begins. If you know this person, you know that he is remarkably clever, charming and convincing. He tells me that the hw professor had prepared a small number of questions, all beginning with something like, "explain how a XXX works in a YYY architecture", and that he really didn't know any details of XXX.
He started by copying a basic diagram of a processor onto the board.
He kept his answers short, he began each with quizzical look indicating that the question was obvious, and all answers included a remark along the lines of "Obviously, its for performance!" In some cases, while facing the professor, he would point backwards to a spot between components in the diagram. He would slowly move his finger to different areas based on the look on the professor's face.
The hw professor was amused and obviously passed the candidate!
TLDR: don't let classes get in the way of your education.
We are a family of 5, and in Switzerland, that means 2 hotel rooms x 3 nights. Staying in Zumthor's cabin is certainly a splurge, but marginal utility of staying in a special place well exceeds marginal costs.
Also, if you are irrationally nostalgic like me, the renting experience felt like how airbnb felt in 2011...before all the bad experiences which have swamped it in the last 5yrs
+1 even more so, because I could see the small flaws and gaps that Zumthor may tolerate in a personal dwelling, but may not fly in large-scale projects.
Lesson for me: perfection isn't necessary for the experiences I want from exceptional architecture.
-- Indeed, we didn't want to support that hotel, which is why we stayed in Leis. I'll add that to my post.
-- Like everything in Switzerland, it was easy to reserve spots online. I think we went on a Monday. Therme Vals is a well-designed space, and the spa experience includes ~18 different zones and temperatures. Some of them are gimmicks, but nonetheless delightful play of space, sound, temperature and texture (stone).
Our family isn't into the pampering-spa experience, but I think all of my children can still describe that place 1yr after---worth it for me.
He is a top expert on a security topic. Running Android platform security gives him an opportunity to have incredible positive impact for many people---which he did for a decade.
People weigh trade-offs.
At the beginning, he may have had high ambitions to deploy interesting, research-forward ideas to Android; at this point, he has accomplished a lot of that. Maybe now, he is considering other factors.
Guessing that people are only money-driven or have made some decision because of threshold personal wealth is awful, especially if you do not know them.
Almost all academics I know (I am one also) are driven by personal curiosity, intellectual ambitions, a need to identify and solve problems, and a strong desire for positive contribution. I know Rene and believe this to be true of him.