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Learn Ethereum smart contract programming

ethereumdev.io

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Re: Learn Ethereum smart contract programming

#11

Post by ym705 »

jwfxpr wrote: post #10
g00n wrote: post #2

Maybe it's because I don't have a use for it yet, or at least don't know if I have a use for it. But, the whole Ethereum universe seems vague and seems like they could explain it more than they do. "Install Ethereum wallet, write a contract, ..., Profit!" ?? Is there a better source that might explain what it is, how it works (a glancing explanation not a full network inner workings)??

I Am Not An Expert. If I understand correctly, these are a way to automate the execution of the financial part of normal contracts without the need for undue trust between parties. Some simple examples that might help (and I invite correction): • I and a few investors agree to buy into an enterprise in several installments. A contract can be written to the blockchain that automates these payments. Should a majority o…

Uses case are infinite.. You could also for example write transparent casinos system, transparent marketplace where every transactions would be certified by both parts, a banking system, some new money, ect..

Re: Learn Ethereum smart contract programming

#12

Post by xHopen »

Double_a_92 wrote: post #3
g00n wrote: post #2

Maybe it's because I don't have a use for it yet, or at least don't know if I have a use for it. But, the whole Ethereum universe seems vague and seems like they could explain it more than they do. "Install Ethereum wallet, write a contract, ..., Profit!" ?? Is there a better source that might explain what it is, how it works (a glancing explanation not a full network inner workings)??

Yeah people. Explain Ethereum without using the words "smart contract" please.

It takes some time to wrap your head around the blockchain, first you have to understand Bitcoin , then you will have no issues understanding Ethereum. But I tell you one thing, once you understand it, you will not stop thinking about it.

https://www.youtube.com/watch?v=3RN8bnNe-Is

Re: Learn Ethereum smart contract programming

#13

Post by ym705 »

xHopen wrote: post #12
Double_a_92 wrote: post #3

Earlier quoted context omitted.

Yeah people. Explain Ethereum without using the words "smart contract" please.

It takes some time to wrap your head around the blockchain, first you have to understand Bitcoin , then you will have no issues understanding Ethereum. But I tell you one thing, once you understand it, you will not stop thinking about it. https://www.youtube.com/watch?v=3RN8bnNe-Is

I dream about blockchains. Yeah it's true, not only the technology is interesting but also the community and all the ecosystem behind cryptocurrencies.

Re: Learn Ethereum smart contract programming

#14

Post by xHopen »

ym705 wrote: post #13
xHopen wrote: post #12

Earlier quoted context omitted.

It takes some time to wrap your head around the blockchain, first you have to understand Bitcoin , then you will have no issues understanding Ethereum. But I tell you one thing, once you understand it, you will not stop thinking about it. https://www.youtube.com/watch?v=3RN8bnNe-Is

I dream about blockchains. Yeah it's true, not only the technology is interesting but also the community and all the ecosystem behind cryptocurrencies.

And this is just the beginning.

Re: Learn Ethereum smart contract programming

#15

Post by repomies691 »

ym705 wrote: post #9
jerguismi wrote: post #4

Earlier quoted context omitted.

The use-cases for smart contracts seem to be quite low, so I wonder if it really is worth the investment to learn to develop smart contracts. Additionally, even the smart contracts written by the experienced ethereum developers have contained bugs, resulting to losses of tens of millions worth of ethereum. To me it sounds like it is much smarter to use some pre-existing smart contract which is used by many, instead o…

"To me it sounds like it is much smarter to use some pre-existing smart contract which is used by many, instead of making your own." This is exactly how the last "big hacking" had happened https://qz.com/1034321/ethereum-hack-a-coding-error-led-to-3... But as you said writing your own is also error prone.

How about taking some existing smart contract, and also reviewing it also carefully? If it is used already by lots of users, people have already trusted it with their money.

I'm pretty sure that developing your own has much, much higher risk than using some pre-existing solution.

Re: Learn Ethereum smart contract programming

#17

Post by staticelf »

The problem I see with Ethereum is that it is way too complex. I have read perhaps at least 10 times on their home page without even understanding what it does, what problems it solves etc.

This is the sole reason why I don't think it will be successful in it's current state. With most successful tech or services or whatever the core idea is often super simple to grasp and you can instantly see the benefit. I don't see this with Ethereum.

Even with bitcoin which is complex the benefits are instantaneous for the common man. Decentralized system, no single entity controls it. It is a fixed amount of bitcoins so like a mineral it's value is probably going to be stable in the long run and also each bitcoin will increase in value when more people get interested. It's easy to send coins to anyone in the world, at any time.

What does Ethereum do? Smart contracts is probably the key word but I don't understand how it works or how it will benefit me. Why bother?

Re: Learn Ethereum smart contract programming

#18

Post by repomies691 »

omarforgotpwd wrote: post #16

Programmable smart contracts are a great idea in a world where programmers write bug free code. That world does not exist yet. Until we have near-perfect code writing AIs every new smart contract is just a disaster waiting to happen.

They might still be a good idea, you just have to live with that risk. World is full of risks anyway and you might die tomorrow in a traffic accident. Sometimes risks are worth taking, such as leaving your apartment and risk walking under a car.

Re: Learn Ethereum smart contract programming

#20

Post by ym705 »

rmetzler wrote: post #19

I took a glance at the lottery example [1] and I wonder: isn't the owner of the lottery able to change the outcome so the winningNumber is always in his favor? [1]: https://ethereumdev.io/managing-multiple-users-a-simple-lott...

Could you explain more how would it be possible?
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