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Why is my smartphone charging very slow on USB ?

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Better read: Data Consistency in Distributed System - CAP, PACELC Morality series - a heptalogy This blog is mainly focused on my Philosophical and theoretical ideas. From time to time I have practical posts that are too few to deserve a blog by themselves. I still hope my other work (like above) is even more valuable than such practical article as below. * * *   Sometimes the phone is connected to a charger, it reports "charging", however the battery level increases painfully slow, or it could even actually decrease. What is the solution? On short: Update 2020 : prefer original chargers. Even using QC 3.0 charger, some Samsung phones (like A51) will charge faster with original charger - when the display is ON. With display OFF, QC 2.0/3.0 chargers might still be as fast as original chargers. For phones, prefer the 1A ("phone") charger port to the 2A ("tablet") charging port. The 2A port is likely to charge slower than the 1A port (see below why)...

Debt gives value to money

What gives value to money? There was a time when money was pure gold. Later, money was a certificate that you own a quantity of gold in bank (banknotes). Now the money are just quality paper, without any deposit behind. How that it has any value? Some said that money is just a convention, and the fact that the state accepts that coin as the "legal tender" gives it value. However, we know many coins that lost theirs value despite the state effort to  sustain it. How that other coins survives? I claim that debt is the one that gives value to the today's (fiat) money.

DNA and the fabric of the Universe

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The genetic code seems to not be enough to describe the complexity of a human being . In fact, it seems too small to describe most of the life forms. We could assume that the genetic code has all the information very compressed, but still... I will approach the problem of describing life complexity based of information theory.

Genetic code (DNA) is not enough

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Photo: wikipedia.org Genetic code (DNA) could be seen as the best compression algorithm that we have ever seen . Just think about it: in only around 1 GBytes, DNA could store the information to create a human being, with all the general and specific characteristics and many non-educated behaviors. In 1 GBytes, the current technology could barely store a 1.5 hour movie at rather low quality, but human DNA is able to encode everything that is human in a lifetime.

Is Your God so small?

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When I see the continuous fighting over Jerusalem... I would ask the people that are killing each other for a piece of "saint" land: "Is your God so small that He only lives on that little piece of land?"

The meaning of music

The meaning of music is hard to capture in words. Let's try some ideas anyway! The brain bug The brain has a natural ability to extract patterns from all the stimulus. It's a fact that we like the music that has some patterns: that is not very monotonic (boring) but not very random either, so we can continuously learn some new patterns. Somehow the brain has the illusion that it continuously learns in an accelerated rate by listening music. So music could be considered a small addiction at the first analysis.

Audiophile music - 10 conclusions

I am passionate about sound quality lately. Here are my early conclusions from the research and experiments I did. This is the order of sound optimizations that you could try in order to improve the music experience. 1. Live music sounds better than recorded music 2. Un-amplified live music sounds better than amplified music 3. Recorded music sounds better on loud speakers than on headphones 4. Expensive headphones (>100$) sounds better than cheap ones 5. Open-air headphones sounds better than closed enclosure ones 6. Loss-less music (like FLAC) sounds better than MP3 7. High bitrate MP3 (>128kbps) sounds better than low bitrate 8. A professional DAC (or sound card) sounds better than a cheap one 9. High sample rate music (>44KHz) could sound better than 44KHz (or not) 10. Music encoded at 24bits could sound better than 16bits music (or not)  I will say a few words about each, from my limited experience and research: