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The problem is data corruption. If a CSV is corrupted, then I could at least parse part of the data. For a corrupted SQL file, I'm done. Also, diff is not working for binary format, and it is more difficult to trace change for SQL format.

In this sense, I prefer a SQL dump file.

Seems inherit the same limitation of RobinHood: you can't do short selling. Not sure how actually they could do a free commission order, so not sure why short selling is not supported, but it limits the use of long only strategy.

Great job. Install it and instantly love it.

Just setup a google app password.

Slightly off topic, I was always thinking about are there any single point of failure in monetary system. Since bank reserve are accounts in central bank, which stores in some ancient servers. If terrorist or hacker found out a way to destroy those servers. Will the money in economy vaporize? Are there any paper record we could fall back?

So, what is the most secured option for the moment? Buy a x86 box and turn it into a router? But it consumes more power than a low-power router, and buying more network adapter is not that cheap.

I am currently using the open source tomato firmware. However, since there is a bug/feature in the router so that I cannot flash an image too large, or otherwise it would not work. Also, the configuration is limited to 32 KB, if configure too much, then the configuration file will become gibberish and some random feature in the router would be missing, and required a factory reset to fix. So, I am stuck with an older version of tomato which guarantee some kind of vulnerability is not fixed.

Not sure what I can get in the form size of a router. Raspberry pi may work but too few ports available. I heard that the CPU would get hot for intense network traffic.

I don't think it makes any practical sense. Hong Kong by default is using cremation, unless some rich person have a land for them to keep their body inside a coffin because Chinese tradition prefer keeping the whole body after dead. Even if disposed to sea, they still need to build a grave for them. Cremation only required to have the space of urn to place, and a gravestone. The urn does not take many space. If graveyard is still required to build, it does not save too much space.

The alternative that saving space is just sent them back the urn of ash and people just put the gravestone at home. But putting dead body, even in ash, is taboo in Chinese tradition and nobody would accept it.

It is difficult to execute a policy that opposing the local tradition, and it is not really necessary.

Terraforming Mars, or maybe just create a habitable satellite is easier than saving the earth. Current economical model fosters growing business, and only government regulation to deal with externality. Growing is intuitive to human activity, but restricting human growth is counter-intuitive.

I forget the link, but a lecture video using bacteria growth as a metaphor of human growth creeps me out. Supposed bacteria in a jar growth 2 times for 1 minutes, and the jar will be full in 1 hour. When will the jar be half full? Answer is at 59 minutes. At the time of 58 minutes, only 25% space is used. How many bacteria thinks the jar or the world will be full after 2 minutes?

The situation is similar to human, and we still cannot find a way to protect the environment and have economic growth at the same time. Maybe the end of human history is next 2 years but we still think its pretty okay and didn't notice anything unusual. Then maybe finding a new jar is the second best way to deal with it.

The most successful decentralized communication system - email as it turned out, people would concentrated to large free provider like Google. Decentralized server does not protect privacy for normal user because not most people could handle owning their server.

The most success decentralized service is BitTorrent. It is decentralized and it is decentralized in client level. Though it also caused uncontrollable piracy, since it is too easy to spread any data using Bittorrent. I think a true decentralized social network to protect privacy should be a p2p app, not server to server federation.

How could I embed a knowledge/assumption in deep learning neurons? In high level programming language, it would be easy, but tweaking the neurons parameter to embed that knowledge? Sounds more difficult than writing machine code.

To be honest, I don't quite understand what smart city even means. This term is so board and include so much different aspect of life that I am not sure what it includes. It is a cool marketing term, but does not explain too much what is happening.

So, I have read some of the use cases. One of them is putting a sensor in a garbage bin, so that the sensor could take picture of the garbage and determine where they should go. I don't think this is smart. Japan has already been very efficient on garbage collection, because Japanese people just separate different type of garbage themselves, and fine people who don't. A policy could just fix this in a cost effective way, not some sensor. But the spirit here is placing a camera to see what it could do.

Some other project like improving the accuracy of water meter to detect water usage and pinpoint leaks. They admit it already exists, and only improvement is required.

I could conclude that it is a debate about who could put an IoT or sensor in the public area. Google just wants to place those IoT in the city to see what they could do with it. Basically a web crawler in physical world. The government may also want to create a hype so that people would approve infrastructure funding to improve existing infrastructure people don't think it's that smart.

Am I missing something here?

Add to that, even Android is not so free. Google requires manufacturer to pay a premium to include Google Play Service, which is proprietary, and Android Support. This cost will be transfer to customer, so Android + Google Play bundle is not a free OS. It cost something, just not having a price tag to buy separately.

It means I paid for Google Play Service to be included in Android and they also required me to pay by personal information to use their cloud, which is fine, but I don't have a choice to opt out, or choose to pay Google and not selling my data. The problem is the implicit contract with no opt out or alternative payment to respect my privacy.

True, so can I get paid when I sell my information?

Actually, grepping necessary information from the files is more efficient than reading a bloated web page from job site with infinite scrolling where your Ctrl + F is not working.