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cobookman

2,226 karma · joined April 19, 2013

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cobookman··on SmartFarm device to harvest air moisture for self-sustaining urban farming
Currently in the bay area its 60-80% humidity. It also hasn't rained for weeks.

In the summer, certain parts of the Bay Area still has high humidity levels without rain for months on end.

cobookman··on AWS Lambda Edge changes duration billing granularity from 50ms down to 1ms
Lambda (at least the non-@edge version) comes with 512MiB of /tmp directory storage

And "The same Lambda execution environment may be reused by multiple Lambda invocations to optimize performance. The /tmp area is preserved for the lifetime of the execution environment and provides a transient cache for data between invocations. Each time a new execution environment is created, this area is deleted."

https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-...

https://aws.amazon.com/blogs/compute/choosing-between-aws-la...

cobookman··on CEO of Waymo John Krafcik is leaving
How many XXB/year companies start off making XXB/year or have clear visibility to XXB/year near-term?

For example, I doubt the AirBNB founders early-on and/or 5-10 years ago even imagined they'd have multiple billions of revenue.

cobookman··on Tesla's EPA Driving Ranges Didn't Hold Up to Testing
Sounds like they were driving at consistent 65 mph. Where-as optimal speed for maximizing range is likely closer to 45-55mph.

They also ran the AC/heat with cabin set at 72F. With them doing the driving not on a track but real life (stop & starting).

Technically speaking the EPA numbers aren't necessarily "real life". Its a repeatable test environment: https://cleantechnica.com/2020/08/18/how-does-epa-calculate-...

cobookman··on Multiple US Navy destroyers swarmed by mysterious 'drones' off California coast
But does the 1 million dollar missile cost 1 million to build a second one?

Often times military cost per unit factors in a fixed R&D cost. It doesn't necessarily mean it literally cost 1 million in parts and labor to assemble the single missile.

cobookman··on Young female Japanese biker is 50-year-old man using FaceApp
Wouldn't that require an understanding of physics to properly make his landing :D
cobookman··on We Don’t Use Docker
I once joked with a colleague that my sqlite3 install is faster than his Hadoop cluster for running a report across a multi-gig file.

We benchmarked it, i was much, much faster.

Technically though once that multi-gig file becomes many hundreds of gigs, my computer would loose by a huge margin.

cobookman··on Tuna’s Last Stand
Wonder what will happen when fish isn't enough to sustain those who depend on it. Could totally see wars being waged over food sources
cobookman··on Toronto swaps Google-backed, not-so-smart city plans for people-centred vision
Toronto is expensive given the amount jobs are paying in the area.

SF a condo might be 1M, but getting paid 250k+ for a job is fairly common.

In Toronto the condo might be 1M (CAD), but getting paid 250k+ CAD is not common.

By all accounts Toronto is more expensive than SF

cobookman··on Israel, Cyprus and Greece agree to link power grids via subsea cable
Israel also just signed a bunch of peace deals. With this network easily expanded to those countries.

So long as Israel plans for a future where such arrangements get rescinded, they could safely operate an energy market across the middle east and parts of Europe.

Could be a good counter way to counter russian oil, and pave way for a very lucrative post-oil society. Middle eastern countries have a lot of solar and empty land for energy-storage. With many of these middle eastern countries having the capital for large green-tech investments.

cobookman··on USPS Selects Oshkosh Defense for Next Generation Delivery Vehicle Fleet
That and certain states will force the transition. California being one of them. After 2035 the USPS wont be able to register a new diesel van.
cobookman··on Parched oystermen, farmers face off in Supreme Court water war
Not that crazy to have a pipeline from California to Ariz/Nev.

With Ariz/Nev supply Cali with their excess solar to the desal plants.

cobookman··on Parched oystermen, farmers face off in Supreme Court water war
Cheap solar in the west (California, Arizona, Nevada) coupled with desalination plants. We'll be fine for *urban/residential* water needs for the foreseeable future.
cobookman··on Share of U.S. workers holding multiple jobs is rising
You assume the store wouldn't replace the grocery clerk with self-checkout machines or install an amazon go like-system.

Robots & specialized technology solutions are year-over-year going down in cost. If labor continues the upwards cost trajectory we'd simply be accelerating the replacement of unskilled labor with robots.

Great example is Knightscope. It's able to meet security guard compliance & insurance needs at an hourly rate cheaper than humans. And given enough time, I'm sure it'll end up more reliable. https://www.knightscope.com/

cobookman··on Expanding our testing in San Francisco
The cost of manufacturing 10,000 lidar units is much different than the cost/unit for a batch of 10,000,000 units.

Just look at EVs and the drop in battery cost over the years. Lidar being cheap at scale is just a matter of when, not if.

cobookman··on Expanding our testing in San Francisco
If the person wears a mask...the camera & lidar footage wont do much good.

You also assume the SF police force will bother hunting down the perp even with a picture for a crime which likely will go unpunished in SF with its effective decriminalization of petty theft & crime.

cobookman··on Why did I leave Google or, why did I stay so long?
The executives are still beholden to supporting teams. Want to launch a new feature that depends on GFE. Looks like the current GFE is end-of-life, but the the new one still isn't ready yet. Let's connect with GFE team on if they'll support the older GFE and accept our CL to launch...<GFE has power to delay your launch right here>

Next up is the documentation. That requires the doc team's approval. Oh they require IL8n, lets go to that team and see where in their queue we are <Doc team has power to delay your launch>.

This same flow occurs across all supporting teams. And it can get complex with Service A depends on Service B, which depends on Service C...and Service C can reject the quota increase delaying your launch...etc.

> I expect the same is true at Amazon or Apple

At amazon you would connect to who everyone reports up to, or whoever has clear decision making authority. You would then provide a written document going over the facts and suggested decisions, and ask they make the call. After that its "disagree and commit".

cobookman··on Why did I leave Google or, why did I stay so long?
Consensus Building really sums up the issue. There's no clear decision maker at Google. There is no Tim Cook or Jeff Bezos. Instead it is a collection of teams in a department.

It is like a democracy, but differs in that you need every single team leader onboard to get anything done vs say 51% of the "vote".

cobookman··on What went wrong with the Texas power grid?
There is little to no fine for stopping service during the high wind events.

The incentive pushes them to shutoff, its simply cheaper than repairing the grid.

cobookman··on How They SRE
Not even Bay Area prices. A Jr. SWE after overhead (benefits, HR, laptop, office-space,...etc) is easily costing the company 150k+/year in most markets.
cobookman··on Ford, Google form 'strategic partnership' on cloud services, Android
This is why I like android auto / apple car play soo much. The car just becomes the speakers & display for your phone.

Genius idea, and works great

cobookman··on Reddit's GameStop, AMC surge is the new Occupy movement
GME could issue shares and get a large cash infusion into its business. GME could sell some of its shares to get a large cash infusion into its business.

Their market cap 19x'd up to ~19B. Having a 1B cash infusion into the business isn't crazy. Imagine what 1B of investment into Gamestop could achieve.

cobookman··on East Coast Internet Outage
They offer a 2Gibps fiber optic plan in certain locations for ~299$/month.

https://todayamerican.medium.com/the-definitive-guide-on-how...

cobookman··on 18.7 Million Americans Vaccinated
I highly doubt we'll have an exponential curve for manufacturing supply.

Even a 2x increase is incredibly difficult. Just look at n95 manufacturing, a much easier problem to solve. We never saw exponential curve in its manufacturing.

cobookman··on 18.7 Million Americans Vaccinated
America has ~330 million people. Let's assume the 18.7 Million was just in the month of january..not 100% acurate, but not 100% inaccurate.

That gives us a timeline of more than 1 year at current rate to vaccinate the entire US. Even vaccinating 70% the population will take roughly a year at current pace.

Puts things in some perspective.

cobookman··on Climate change: US emissions in 2020 in biggest fall since WWII
I'm not convinced that it needs to be internet controlled. Hopefully it uses protocols like BLE or Zigbee requiring proximity. That way such an attack would require being physically near the device.
cobookman··on Climate change: US emissions in 2020 in biggest fall since WWII
Decentralization is also in the National Security interest. Makes it much harder for an adversary to take down large swaths of the US Grid.
cobookman··on SolarWinds: What Hit Us Could Hit Others
NPM is not trusted by major fortune enterprises. Many of the tech companies I've worked at banned using NPM in prod. And instead created their own NPM Clone with source code pinned into a private repo, which security audited.

Adding a single NPM library became a total PITA, as it linked to another 100 other NPM libraries, which in-tern linked to an additional 100+ other NPM libraries. So adding a single NPM library to the private repo, meant adding 100s to 1000s of other NPM libraries. (E.g. left-pad [1])

Personally, I think this was a major reason for node.js not picking up more in the enterprise space. With Python & golang getting more traction.

[1] https://qz.com/646467/how-one-programmer-broke-the-internet-...

cobookman··on Laptop stolen from Pelosi's office during storming of U.S. Capitol, says aide
In particular remotely denoted "Kill" devices. Which destroy the entirety of the laptops contents.

Encryption by itself is likely not enough to secure the contents from a nation state actor.

cobookman··on Laptop stolen from Pelosi's office during storming of U.S. Capitol, says aide
I'm surprised congressional office's laptops do not embed remotely detonated explosives/destruction devices triggered with sat or cellular comms.
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