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Blockchains explained visually (part 1 of 2)

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Re: Blockchains explained visually (part 1 of 2)

#11
post #3

The best explanation of blockchain has to be (unsurprisingly) 3Blue1Brown: https://www.youtube.com/watch?v=bBC-nXj3Ng4 Would highly recommend watching this video for anyone who hasn't already.

I came here to post the same link! I'm always amazed at the number of programmers who pooh pooh blockchains as a fad (they probably are a bit oversold at the moment) but when they realize what they are and how they work, go hmm.

Re: Blockchains explained visually (part 1 of 2)

#13
post #3

The best explanation of blockchain has to be (unsurprisingly) 3Blue1Brown: https://www.youtube.com/watch?v=bBC-nXj3Ng4 Would highly recommend watching this video for anyone who hasn't already.

I came here to post the same link! I'm always amazed at the number of programmers who pooh pooh blockchains as a fad (they probably are a bit oversold at the moment) but when they realize what they are and how they work, go hmm.

Absolutely agree with this. It's a shame that for the moment such a revolutionary technology is getting so tied up with _super_ shady stuff. For every 10 awful Ponzi ICOs there's a real gem of someone using new tech to really try and push boundaries.

Re: Blockchains explained visually (part 1 of 2)

#14

This part of the blockchain always made perfect sense to me. The magic is in the proof of work and proof of stale stuff as well as smart contracts.

I think the logical split I've made between those two areas is a good one since people tend to be in one of two camps in terms of how comfortable they are with all this. Hopefully I can do justice to the second part.

Re: Blockchains explained visually (part 1 of 2)

#15
post #3

The best explanation of blockchain has to be (unsurprisingly) 3Blue1Brown: https://www.youtube.com/watch?v=bBC-nXj3Ng4 Would highly recommend watching this video for anyone who hasn't already.

My favorite: https://www.youtube.com/watch?v=_160oMzblY8 It explains from ground up without getting complicated - it basically demystifies the whole thing completely i give this to everyone - even to non technical people

I've seen this before and it's so awesome. Best block chain explanation I've ever come across (much better than 3blue1brown imo).

Re: Blockchains explained visually (part 1 of 2)

#16
post #13

Earlier quoted context omitted.

I came here to post the same link! I'm always amazed at the number of programmers who pooh pooh blockchains as a fad (they probably are a bit oversold at the moment) but when they realize what they are and how they work, go hmm.

Absolutely agree with this. It's a shame that for the moment such a revolutionary technology is getting so tied up with _super_ shady stuff. For every 10 awful Ponzi ICOs there's a real gem of someone using new tech to really try and push boundaries.

I wouldn't worry about it. This phenomenon is true, maybe to a lower degree of mania, for technologies past (trains, exploration, gold rushes, every tech bubble) and present (crispr, biologics)

Re: Blockchains explained visually (part 1 of 2)

#17
> Toggle pointless gifs off

First time I've seen that. That should really be the standard for any author who decides to pepper their articles with 'memes' and other unrelated distractions.

Perhaps this is a cultural or generational thing that I am interpreting in the wrong way, but whenever I follow a link to a blog post filled with these kinds of distracting animated pictures I tend to just give up on the article after encountering the first one. I just can't fathom why someone who wishes to inform or enlighten readers on a certain topic feels the need to include a plethora of irrelevant distractions.

Nice to have a way to turn them off so I can give the article a chance based on its merits rather than the presence of memes.

Re: Blockchains explained visually (part 1 of 2)

#19
> See how the hash-chaining mechanism of a blockchain means that even a single corrupt or tampered-with block will invalidate the entire chain after it.

Is that strictly required to understand that the entire chain is invalidated? Since blocks are in order, if block X's previous hash doesn't check out, can't we just assume that every block thereafter is also invalid? Effectively a fork has happened at X-1 block.

I'm guessing there are more dynamics (speed?) that come into this. Maybe the following questions will make it more clear:

1. How do the blocks update when there is a change in a past block?

2. In the real world, what process does a node use to validate the chain on an ongoing basis?

Re: Blockchains explained visually (part 1 of 2)

#20

> Toggle pointless gifs off First time I've seen that. That should really be the standard for any author who decides to pepper their articles with 'memes' and other unrelated distractions. Perhaps this is a cultural or generational thing that I am interpreting in the wrong way, but whenever I follow a link to a blog post filled with these kinds of distracting animated pictures I tend to just give up on the article af…

There was a lot of complaints a few weeks ago on an article with animated gifs. That person changed the homepage with a toggle, mabe it's the same person?
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