@razorbeard
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Blockchain is a series of certificates of summarised information tied together by an imaginary string, and each certificate on the string has a cryptogram that contains every certificate on the string that came before itself - anyone can put a certificate on the string, but no one can replace or modify a certificate that is already on the string; and everybody has equal ownership of the string.
I used to be a huge fan of Mac for programming work. Unix operating system means better tooling, efficient machines for doing productive programming as well as design work on the same machine. Now, I prefer my gaming PC. It has 16GB of RAM, a bomb ass CPU and GPU, a liquid cooling system, RGB lights - its set up in a comfortable workspace with an amazing chair and desk, a 21:9 widescreen monitor, an RGB mechanical keyboard and a super gaming mouse and I can use Docker/Kubernetes to emulate a Unix VM for the programming side and use Figma on the web for any design work. I can get very productive with motion design and animation work in After Effects because of the widescreen monitor and the 250gb solid state drive that runs intensive applications at Usain Bolt speed. I can open a 300MB Photoshop PSD in 2 seconds and get working. I don't have to wait a whole minute for the blue splash screen to tell me who made Photoshop before getting any work done anymore. :) The only downside is portability. I can't take my gaming rig with me wherever I go. My current solution to this particular problem is to not go anywhere. I do still have a macbook pro, so technically I could be out and about with my work, but I would never ever separate myself from my heavenly workspace.
I use a similar monitor to this one: https://pcpartpicker.com/product/LrcMnQ/lg-34uc79g-b-340-144hz-monitor-34uc79g-b It is a 21:9 widescreen 2560*1080 monitor with a 144hz refresh rate. This means I can have 3 windows open side by side without any of them being "squashed" (great for coding if you hate horizontal scrolling). The 144hz refresh rate means more frames per second - animations seem more detailed and the brain is able to recognize more information in a burst of frames than a typical 60hz monitor.
I have a hunch that voice recognition, artificial intelligence, blockchain, virtual reality, web assembly and quantum computing will all one day meld together and combine into one field - an internet of infinite virtual worlds - it will take over the gaming, film, adult film, fitness and education industries and will create opportunities for a new breed of human-machine interfaces that make experiences in those virtual worlds have tactile feedback in the physical world.
I would build the core backend with Elixir/Erlang (Elixir is more adept at handling multiple simulataneous connections than Node.js and has far more powerful constructs for dealing with coordination of concurrency and realtime messaging) and use Node.js for bespoke microservices and APIs, along with Neo4J graph database for relationships and MongoDB (or another document database) for basic entity information (like user profiles). I would use ZeroMQ as a message queue to tie the architecture together.
requestAnimationFrame pauses execution automatically when the browser window loses focus. You can use a recursive setTimeout instead of a setInterval and encapsulate it in a requestAnimationFrame . ( function cleanGarbageLifecycle ( ) { requestAnimationFrame( function ( ) { setTimeout( function ( ) { cleanGarbage(); cleanGarbageLifecycle(); }, 3000 ); }); })();
When there is no need for relational databases: Not all data is related. MongoDB is useful in production when this is the case. For a very simple example; a blog where you are the sole "user", authoring posts from your local machine. There's no login system, just a collection of post documents with embedded "comment" objects that have a commenter "name" field. Or if you're doing geo-spatial lookups, because MongoDB is good at indexing high volumes of that. Or if you maintain profiles (not user account profiles, think more like a missing persons database or sexual offender records where a "profile" is just an informative document). It's also good as a persistent log store, or for storing persistent application settings, or metadata about records stored in a separate database. For rapid prototyping during the development phase. MongoDB is not designed for nor is it good at storing related data, but storing related data is still possible with embedded documents or something like Mongoose's population feature. It's also good at simulating graph data - just objects and pointers. This makes it a solid choice for getting the idea of a project down without much friction - since it's schemaless, there's no need to constantly run migrations to adapt the shape of your data. Also, most MongoDB clients will automatically create the database when attempting to connect to a database that does not exist. This means that as you code, you can safely chop and change your database design without much maintenance overhead - then once you get a more solid understanding of how your data is connected and shaped, you can start the switch over to a traditional relational DB.
I'm a South African developer who has worked mostly in the creative digital media space. Even with a couple years of experience, the most pay I could hope for was that of a junior developer - between $11k - $18k p/a - and I think even that was a bit higher than what my coleagues were earning. Developers in the financial industry earn a lot more here. Roughly 2 years ago I took an entry level remote position at a Brooklyn based agency that paid 5 times that. SA cost of living might not be as high as in the US, but before I took that remote position I was living paycheck to paycheck, i.e. once all my utilities were paid and groceries were bought, I barely made enough money to live a life outside of the office. I had to save up for 6 months to buy home equipment (like dumbells, pullup bars, etc) and walk to work just so I could stay fit. Heaven forbid I get a gym membership - couldn't afford it. I've seen graphs for this in the past limited to US states and found that developers with my skills earn twice as much in the SF bay area than those in NYC. I can't find any recent (last 1 year) info on worldwide salary trends, in fact my own country hardly even shows up in comparisons for developer salaries around the world - so from my perspective, I don't think it can accurately be represented, as the gaps don't only exist between countries and continents. I think that the gaps that exist between corporations - whether from the same country/state or not are the more worrying factor, for the simple fact that a developer's pay is very open to interpretation - perhaps the people paying understand how complex a task programming can be, and pay more - but this is not always the case. It's all about how satisfied the individual programmer is with his/her payment, or more accurately whether he/she is willing to negotiate better pay - which can sometimes take a lot of courage. As an aside, I'm an entrepreneur starting his own business, and I'm hoping to change perspectives of the worth of development work in my country and raise the bar a little higher in terms of fair payment locally, because I've been that guy that has programmed world wide itinerary tracking systems (while being warned any mess-ups could hurt the world economy - not sure if this was true or not, but the stress was real) for a measly $1500.