I've dealt with a lot of negative comments in my life.

When I was a coach I had people yelling at me who didn't agree with my choices.

That's why IDGAF on a comment written by an anonymous user who hides behind a keyboard.

But someone does.

So I wrote 6 things FOR YOU.

1- Never take it personally:

Think they:

- had a bad day,
- just broke up.
- lost their job.
- had their car stolen
- had their house burned down

But don't take this as a direct attack on YOU. it's not about what you have done.
2- Responding is usually more harmful than ignoring.

This does not mean that we must passively accept any accusation, but probably answering it will only fuel discussions.

Also, there are people who like to argue all day long.
That's their hobby.
3- People who waste time criticizing others are almost always people who are dissatisfied with their lives, and project their insecurities, anxieties, fears, and worries onto you.

After all, it's cheaper than going to the psychologist.

You are their therapist. FREE therapist.
4- Everyone gets criticized by someone.

Thank god we are all different and opinions are different.

There is no single truth and we should accept that there are different points of view on things.
5- Only people who act are criticized.

Do you prefer to do nothing for fear of being criticized?

If you really believe in what you do, then don't care about what some people think.
6 - Focus on who you want to help.

You wrote an article and someone criticized you for how it is written.

But another one thanked you.

Pay attention to the positive things too and focus on that.
For context, I am not writing this thread as an answer to any negative comment to me.

It's just to help someone out there.

Even if it's just one person, this thread is worth every single word.

Good luck.

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More from @FrancescoCiull4

Jan 18,
🔲DECENTRALIZED STORAGE thread

Many of us have an idea of ​​what a database is, but how do we behave when dealing with Ethereum?

We can use something called Decentralized Storage (dStorage for frens)

The good news is that Ethereum itself can be used as a DB.

but ...
Image
Table of Contents

· Definition
· The Problem
· The solution
· Blockchain-based persistence
· Incentive structure
· Contract-based persistence
· Challenge mechanism
· Decentrality
· Consensus
· Tools

Definition

dStorage systems are p2p network of user-operators who hold just a portion of the overall data.

By doing so, they create a resilient file storage sharing system.

Two options.

dStorages can be:
- in a blockchain-based app.
- in a p2p network.
Read 14 tweets
Jan 17,
🔲Block Explorers thread.

What is a Block Explorer?

TLDR:
an online tool that helps us to search for data about a blockchain. think it like Google for blockchain.

IN-DEPTH:
If you want to go more in detail, here is a thread based on Ethereum docs and other online sources

Table of Contents

· Definition
· Block Explorer Examples
· Why
· How to use Block Explorers
· Ethereum transparency
· Blocks Standard data
· Blocks Advanced data
· Uncle blocks
· Gas
· Txn Standard Data
· Txn Advanced Data
· User Accounts
· Smart Contracts
· Tokens
· Network

Definition

Block explorers are like a search engine for a blockchain.

They provide insight into every blockchain's aspect, by enabling to search for real-time and historical information about a blockchain, for example:
- transactions.
- addresses.
- data related to blocks.
Read 20 tweets
Jan 16,
🔲NFT Use cases thread.

NFT are not just jpegs...

12 more use cases:
🏀Sport
🎵Music
🗳️Voting
🎮 Games
🎫 Tickets
🏡 Real Estate
🚛 Supply Chain
🎨 Artwork Tracking
💡 Intellectual Property
🎓 School and Degrees
🏥 Patient's Health History
🍕 Authenticity of food/medicines

🏀Sport

Highlights of some particular moments can be sold as NFTs, and they can be invaluable to a fan.

The NBA is already using this mechanism extensively.
🎵Music

Some artists have already started interacting with their fans, finding new ways to monetize using NFTs, associating them with some particular activities or unique moments.
Read 14 tweets
Jan 15,
Path to Learn Docker.

One of the questions I get most often is:
"What are the steps to learn the basics of Docker?"

In this thread, I list the 10 steps that I think are optimal for a beginner.

There are no links or promotions here, just concepts.

/thread
1) Understanding WHAT Docker is and what it isn't, what are the building blocks of it

2) Understanding what containerization is and why it is so important. Differences Containers/Virtual Machines

3) Install Docker on your operating system and make sure it works (`docker info`)
4) Take a look at "Docker Hub" and make a bit of practice using one image there (eg Nginx) and understand the basic commands: start/stop/list containers.

5) Understand how the components are made and their configuration: commands inspect/exec/logs.
Read 8 tweets
Jan 15,
🔲Ethereum Contract ABI Specification thread

What is ABI?

Good morning.

Today spent a few hours reading the Ethereum contract ABI specification and I summarized the main parts in this thread.

For further reading, refer to the official docs.

Table of contents

Basic Design
Assumptions
Function Encoding
Types
Tuples
Mapping Solidity to ABI types
Encoding design criteria
Static and Dynamic types
Contract Application Binary Interface (ABI)

It's the standard way to interact with contracts in the Ethereum ecosystem:
- from outside the blockchain
- for contract-to-contract interaction

Data is encoded according to its type

The encoding requires a schema in order to decode
Read 14 tweets
Jan 14,
🔲Blockchain Oracles

What is a Blockchain Oracle?

In a nutshell, a bridge between the blockchain and the outside world.

in this thread, based on the Chainlink documentation, I summarize the main parts to get an idea in 5 minutes.

Table of Contents:

· definition
· decentralized oracle networks
· smart-contract problem
· oracles are bridges
· oracles + smart contracts
· critical point
· decentralized oracles
· oracle types
· oracle reputation
· reputation frameworks
· oracle use cases
· conclusion
Definition

Oracles are entities that connect blockchains to external systems.

Based on the real-world input/output, oracles enable smart contract execution.

Oracles provide a way for the Web3 ecosystem to access:
- existing data sources
- legacy systems
- advanced computations
Read 15 tweets

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