About consensus: because consensus means everyone has the right to check the information on the network, if it is right or not, if the information is right, which will be put into the blockchain. My question is that if there are some people they are doing or judging something bad on purpose, what will happen? Will the information is not able to be put in the blockchain or what?
Many blockchains are using Proof of work, but proof of work can only be secure if enough users and miners are using that blockchain. Bitcoin has so much hashpower and network effect that only bitcoin is so secure that it isnāt vulnerable for a 51%attack.
In Bitcoin, miners need to spend money on electricity wich is outside of bitcoin (real world other costs in dollars or something)
While in proof of stake, you donāt have costs outside the network, but just lock up some crypto (instead electricity costs) so there is no connection outside of the network.
In POS, you can be randomly chosen to validate a block and when you cheat, you will loose your locked up crypto. So itās 100% game theory.
How you mean?
If you write your homework in the forum, it will stay there forever. If you click on your profile, then on activity, you can see all the posts you have done in this forum.
In Bitcoin, itās not like politics. If you send a transaction in Bitcoin and it is mined into a block, every node around the globe will have the same information. And the math needs to be correct. So if 1 person wants to change something, all other nodes will immediately see that your information is not correct.
You also have consensus rules in Bitcoin. But to change those rules you need to fork the blockchain like voting.
This is interesting indeed about the plants crying, I found understanding this technology really challenging.
But definitely blockchain (non this program specifically) will help high quality tomato producer to be visibile as everything will be track from the seed to the water used to irrigate the tomato.
Will jobs such as in the accounting sector will disappear or mutate with the culture of transparency and traceability ?
Tomatoes are weeds in my neighborhood. They produce best when abused: buried up to their necks, hung upside down, tied up to racks. Yummy tomatoesā¦ 
1 Like
Thanks for response but I do not know game theory.
I guess thatās the same for loads of plants - Indica are just like thatā That make me feel just like in some cases, real constraints might add great value on systems that are strong enough or should we definitely brand it anti-fragile as designed ?
Hi Ivan,
Its a good start not to overloaded and not to difficult to answer.
I will see how fare i can go in your academy.
Kind regards
Zado
1 Like
Anyway, you will learn more about the difference of Proof of work VS proof of stake in the academy.
I will also link a video
3 Likes
In the growing phase they need more Nitrogen! They need more kalium and phosfor in the flowering stage + enough (sun) light 
I donāt think so, but it will be more effecient and less chance to fraud.
Maybe in the distant future, who knows.
1 Like
Thereās a question I have for awhile now and hopefully someone can help me.
So I do believe the blockchain technology is trust-less, however, letās imagine I want to buy a product on internet with bitcoin, I send him the amount of bitcoin for the product. Then there is still a trust needed, that he will send me the product I just bought. Is there any solution to reduce any scam of that sort?
I hope the question is clear enough, sorry for my english.
1 Like
But you can proof on the blockchain that this transaction happened!
I think heās asking how does the blockchain confirm that the other person has sent the correct item or even sent anything at all.
1 Like
Thatās true, but still, since bitcoin is pseudo-anonymous, the seller could still get away with it. It doesnāt matter if the transaction happened and is correctly on the blockchain, how can you prove that the receiver of the bitcoin was supposed to send me a product.
1 Like
Yes exactly, thank you
Spherical mind mapsā¦ Coolā¦!
IĀ“m curious to know my friend, do you use Magnetic Memory, with your mind maps. !?
I love the simplicity of emā¦& especially printed out & left somewhere where you can see them
kitchen, bathroom whilst brushing ones teeth, toilet, ( wont go into detail there ).
& then using a map of the worldā¦I like itā¦!!
I think no one can give you an exact answer to this. I will try my best to give you my answer on this considering what bitcoin is originally made for and how i see it after my resourges. When Satoshi first invented bitcoin blockchain he had some problems in his mind which he tried to solve, he couldnāt and hasnāt solved all the problems in the highest lvl, but he did the start and now it is in our hands how we expand or evolve this technology.
Bitcoin is trust-less in the meaning of tranfering value from somebody to somebody without a middle man in about max 30 minutes. So i come to your store and instead of paying you by card i pay you through bitcoin blockchain and if you see that i send it to you and give you the hashnumber of the transaction then you only have to wait that the system max after 6 confirmations will have send you the UTXO and it will be in your wallet until you decide to spend it somewere else(not in the wallet of somebody else who pretens to save it for you). Also it is trust-less because no one controls the system and no one can make chanches without the aproval of somebody else. To make a chanche you have to cheat and cheating cost much much more than playing by the rules in.
Also to answer direct to the answer of internet paying interactions, if amazon accepted bitcoin everybody would trust amazon without being afraid of being scammed, wright? But we want to decentralize this monopoly and be sure that the online shop is not a scam and will send the product. This in my opinion could only work with a blockchain that registers the shop and verifies the authenticity of it. Plus the votings after the recipient of the product. And the main problem to solve is to release your money to the seller when the provider has scanned the sending hash of the product so you can follow up were it is and when it is coming so the customer can see the trust-less oportunity of the blockchain. Until now i havenāt found a blockchain doing this and maybe origin protocol makes it in the future. Thatās why we need people to build new and better blockchains and not just copying old ones that already exist.
3 Likes