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Richard_East commented on In mobile, 62.7% of computation energy cost is spent on data movement [pdf]   safari.ethz.ch/architectu... · Posted by u/bshanks
bshanks · 6 years ago
One way in which the brain differs from conventional computers is that neurons appear to serve as both CPU and memory storage. Rather than having a few fast CPUs and a large bank of dedicated memory with a few busses (leading to "the von Neumann bottleneck" of data transfer between memory and CPU), the brain has many slow neurons each of which has many connections with other neurons.

So, in-memory computing may be more brain-like.

The brain appears to be very good at massive concurrency with low energy consumption, at the expense of slow serial computation and a high error rate.

Richard_East · 6 years ago
Low energy consumption checks out - a brain uses only 12 watts.
Richard_East commented on Fibery – yet another collaboration tool   fibery.io/anxiety... · Posted by u/pookeh
icelancer · 6 years ago
"Mobile last" is actually a strong feature. Screw working on your tiny phone; make the desktop the target environment.
Richard_East · 6 years ago
I agree - but there's no native Windows app. I don't want to have to shift through a dozen tabs in Chrome to find one for Fibery, I want to just click an icon on my desktop. I also want Desktop-specific features like Right-click.
Richard_East commented on The top 1% of app store publishers drive 80% of new downloads   techcrunch.com/2019/11/21... · Posted by u/elorant
Richard_East · 6 years ago
Here are the stats for Steam, for upcoming games:

https://docs.google.com/spreadsheets/d/1HzJWXOvWhyH0hTaARD5-...

Top 1% varies greatly, responsible for about 30-80% of customer interest, depending on the week.

Richard_East commented on Fries of the Future   npr.org/transcripts/77277... · Posted by u/danso
Richard_East · 6 years ago
You can make french fries incredibly easily at home, using just a microwave. They taste a lot better than anything bought commercially.

Just buy a big potatoe, cut it into thin strips. Place it on a regular dinner plate. Add seasoning. Microwave for 5 minutes.

Take out, shuffle the strips around, add oil (regular olive oil works fine) and normal, non-processed cheese. Microwave for another 3 minutes. Its done when you can poke a fork through the fry without any resistance.

Total prep time: about 10 minutes.

Richard_East commented on The cognitive costs of air pollution   patrickcollison.com/pollu... · Posted by u/jseliger
hombre_fatal · 6 years ago
Yeah, I'm confused by all the comments saying this too, especially since those detectors are yet another nontrivial expense.

If you know you're in a polluted environment, why would you need instrumentation before taking action? To me it's like getting blood work done before you err on the side of exercising.

Richard_East · 6 years ago
If you're closing up your house to avoid outside air pollution, you will spike your CO2 levels.

You need to keep enough ventilation going to ensure you don't exceed 800ppm CO2.

You also need to monitor the PM2.5 levels to ensure your air purifier is working.

An air quality monitoring device is an essential piece of equipment for anyone.

Richard_East commented on The cognitive costs of air pollution   patrickcollison.com/pollu... · Posted by u/jseliger
rahuldottech · 6 years ago
This really bothers me. I live in a VERY polluted place, and unfortunately moving away won't be an option for me for at least half a decade. What can I do to minimise the health effects of such an atmosphere? I'm planning on getting an indoor air filter for my home.
Richard_East · 6 years ago
Its not difficult, firstly buy a monitor which tracks CO2, PM2.5, VOC:

https://www.aliexpress.com/item/32887570197.html?spm=a2g0s.9...

Tracking CO2 is very useful for internal spaces.

And an Air purifier: https://www.amazon.com/Purifier-Display-Formaldehyde-Sterili...

Richard_East commented on To Make This Tofu, Start by Burning Toxic Plastic   nytimes.com/2019/11/14/wo... · Posted by u/oftenwrong
jddj · 6 years ago
Ugh. The image of a somewhat environmentally conscious westerner taking the time to sort their waste plastics into recyclable / not, only to have it be shipped all the way to Indonesia and then burned on an open fire to boil the tofu which they have been consuming in an effort to do their part to further reduce their negative impact on the planet.

Could have been written by Huxley.

Richard_East · 6 years ago
The whole activity of consumer recycling is mostly pointless for materials like plastic - the solution lies with forcing manufacturers to utilise 'green' materials.
Richard_East commented on Cable to the Stars – The Skyhook [video]   youtube.com/watch?v=dqwpQ... · Posted by u/doppp
sandworm101 · 6 years ago
Not mentioned in video: there can be only one. We couldnt have multiple 1000km long objects on different orbital planes. Collissions would be inevitable. These things change speed with every 'hook' event. Predicting collisions would be extreemly difficult, and impossible to do in time to setup an avoidance. And just give up on those 30,000+ unit sat constellations. Flies to the flyswatter.

We would have to keep them all in one plane, probably to line up with the moon. This would seriously limit thier use beyond orbits in that one plane.

Richard_East · 6 years ago
Sounds like a massive first-mover advantage to whoever builds one first and controls access - USA or China.

u/Richard_East

KarmaCake day66August 22, 2019View Original