One The Best Podcast Episodes About Cryptocurrency That I’ve Ever Heard | Part 1

7개월 전

As many of you know, I’m an avid listener of the Joe Rogan podcast. It’s one of the best podcasts - if not the best, in my opinion - out there. Sean Carroll has been on the JRE show a few times and recently started his own podcast called “Mindscape” in which he analyzes random fields and ideas and breaks them down to their fundamentals.

I’m loving his podcast so far and I’m really glad that he started it. A few days ago, he released a podcast episode titled: “Neha Narula on Blockchain, Cryptocurrency, and the Future of the Internet”

This is by far one of the best podcast episodes I’ve ever heard that covers the basics of cryptocurrencies.

It’s incredibly valuable for anyone who’s interested in the space, regardless of skill level and comprehension of the technology. From now on, whenever I meet someone who’s new to crypto and wants to learn more, this is the podcast that I’ll tell them is a must listen. It’s truly incredible and there’s a lot of great ideas here.

Even if you already know a good deal about blockchain and crypto, there is plenty to learn here. What follows are my own notes that I took while I listened to the podcast. I divided it up into 2 (maybe 3, I haven't fully decided) separate parts because there's honestly so much information here that it can be overwhelming.

They should act as a good synopsis, but I highly recommend listening to this podcast for yourself. I’ve already listened to it twice!! Here's part 1 of my notes:

Link to the podcast:

Podcast title: "Neha Narula on Blockchain, Cryptocurrency, and the Future of the Internet”

3:50 - What is Money?

In general, economists view money as having 3 qualities:

  1. Unit of account - we use it to price items and determine their worth in terms of the currency
  2. Medium of exchange - we use money to buy things and exchange it for goods and services
  3. Store of value - we use money to predictably store value so that it can be saved and then ultimately retrieved and exchanged for goods and services

5:45 - Money is a Story:

The previous definition of money is more of the economists technical definition. Another way of describing money is as a story that we share with each other.

As a side note, this is highly relatable to the book Homo Deus that I read recently. If you read any of my notes that I shared on Steemit about that book, you’ll know that Yuval Noah Harari describes our entire civilization as being hinged on the stories that we share with one another.

The stories that we share are what underlie everything we do. These stories determine where we work, who we interact with, how we interact with each other, what we do with our time, etc. etc. Ultimately, the stories we tell each other are the fundamental grounds for which civilization operates which is why I think defining money for what it is - a collective story - is very important.

Money is worth something because we share a story with each other that says that it’s worth something. We all believe that this story is true and that’s what allows us to exchange this “currency” for real-world goods and services.

In this story, we’ve all agreed to use certain objects - paper, coins, 1s and 0s in databases etc. - to physically (or digitally) represent “money”.

What’s very interesting is that this whole system hinges on a really strange sort of trust between all of us. A stranger can walk into a store and hand over their credit card or a $20 bill and exchange it for a real-world good or service without knowing the shop owner or cashier at all.

They go on to talk about intrinsic value. Things like gold and paper money. For example, the USD has no intrinsic value. It’s backed by the government and thus, it’s worth whatever the government tells us it’s worth.

Another side note: something that I love to do is ask people if they think the USD is backed by gold. I’ve asked countless friends and family and even strangers this question and I think you would be surprised at how many people still think that U.S. Dollars are backed by the intrinsic value of gold. In fact, Nixon ended the direct convertibility of USD to gold back in 1971 in a series of economic actions known as “The Nixon Shock”.

13:20 What Are Some of the Problems With the Current System When it Comes to Money. In Terms of Usefulness of Cash and Cards:

There is definitely an issue of usability with the current monetary system. Certain places like the United States have an easy time transacting locally but many other countries in the world have issues of local transactions. Many people even in the U.S. have trouble transacting internationally and are forced to deal with huge fees and long wait times.

Narula also thinks there is a huge problem when it comes to who is in charge of wealth on a global scale. In particular, she says, about 12 large investment banks basically control the majority of wealth in the world and move trillions upon trillions of value each day.

Narula said that as she learned these ideas and truths about our current financial system, she started to call it all into question. How stable is this system? Why does it seem that there are so many issues? Who’s really in charge and what are the trickle-down implications? She cites the issues of college debt and the economic system in Puerto Rico as examples of the implications of our current financial system. “Is our financial system working for us? - is this the way we want it to work?”

If the answer is no, then how will we change it and make it better?

There are in fact a lot of places in the world that don’t have access to a proper financial system. It is generally accepted that about 2 billion people in the world are considered “unbanked” - financial services such as loans, digital payments, etc.

The reason why these places don’t have access to these financial services which would make their lives better, easier and ultimately result in a higher standard of living is ultimately because no institution has decided to provide them services for a number of reasons - it’s unclear what the credit situation is for these people, it may be incredibly expensive to bring these services to them, etc etc.

She believes that digital currencies might be the solution to these problems. She’s not stating that digital currencies are the end all be all solution to every financial problem in the world, but they might offer us a wide array of solutions to these ever pressing issues. She goes on to cite a few examples of people who have used crypto such as BTC to make their lives easier - i.e. transferring wealth internationally, hedging against debt, national currency issues, etc.

20:00 The Fundamental Question: What is Crypto, Blockchain, Bitcoin, etc.

Narula begins by explaining Bitcoin and it’s history. In 2008, Satoshi Nakamoto (an anonymous individual or group of individuals) sent emails out to a mailing list and said that “they" had this idea for a peer-to-peer digital payment system that operated without any financial institution backing it.

The system basically operates through a group of individuals who decide to run the system on their computers and confirm blocks. Confirming these blocks is basically when your computer solves a computational problem and is rewarded for solving the problem first. The reward is paid out as Bitcoin tokens. This is known as mining.

This went on for about 3 years and it was a relatively small number of people who were playing around with Bitcoin - mining it, sending it to each other and ultimately, creating a story about Bitcoin. A story that Bitcoin is this unhackable form of currency that nobody can take from you (other than user error with your private keys, of course) and it was this sort of pure form of internet money that was solely based on mathematics.

The first exchange of Bitcoin for something of real-world value - some guy decided that he was hungry and he wanted some pizza. So he told people that he would give them 40,000 BTC if they sent him 2 pizzas. Someone in London sent this guy 2 pizzas and then the guy (in Florida) sent him 40,000 BTC in return.

What is Blockchain?

It’s an open source digital ledger that tracks the transactions on the network of a cryptocurrency. Using Bitcoin as an example, anyone can download this immutable ledger and run it on their computer. By downloading this ledger, you can run it as a node and confirm transactions and “compete” for newly minted Bitcoins by being the first to solve the computational problems.

Carroll breaks blockchain down for us in a simple way: he says that blockchain is basically a digital file - 1’s and 0’s - and it’s not just 1 file, it’s a file that exists on many computers at once. Whenever any transaction happens with Bitcoin, then the transaction is added to everyones’ file and then there’s a way to check the files and compare them to make sure that nobody is cheating.

The reason it’s called a blockchain is because instead of 1 transaction being added to the file at a time, you bundle them together in what’s referred to as a “block”. A block is basically just a collection of these transactions that are batched together.

The reason for the chain part of blockchain is because each set of transactions (each block) points to the one before it. The purpose of pointing each block to the previous one is to make the ledger immutable. So nobody can go back in time and alter the transactions because doing so would mess with all of the pointers and it would be obvious to everyone else in the network.

I really like the way that Narula explains the solving of blocks: she explains (@ 30 min), that it’s almost like rolling dice. Every computer in the network is essentially rolling dice over and over again and trying different combinations in order to find the exact right number. Once they think they’ve found the right answer, their answer is published and then everyone else checks it and whoever finds that right number first is rewarded for doing so.

She goes on to explain hash functions. Which is basically a way of fingerprinting data - it’s a chunk of data, 1’s and 0’s that have a certain pattern - the result can be much shorter than the original data, but the hash is distinctly tied to the original problem. So with mining, your computer is basically trying different strings of data over and over again until it produces the right kind of “fingerprint”.

(@ 34 min) The hash function for BTC is known as SHA-256, everyone knows the hash function but inverting it is very difficult. This is just a property of math that makes it a hard computational problem to solve.

The birth of ASICs (application specific integrated circuits) - People realized that they could create these machines that would solve this computational problem faster than any average computer and thus, a sort of “arms race” evolved and now it has become so hard to solve the problem and earn BTC that a regular computer doesn’t cut it anymore.

Is There One Blockchain for Each Currency?

Yes, in most cases, there is one blockchain for each crypto (i.e. BTC and ETH have their own separate blockchains), but there is a more complicated thing called forking. Forking basically results in a separate blockchain being created. Imagine almost that some sort of creature duplicates itself.

Ethereum and Bitcoin are different - Bitcoin is more of a ledger of transactions but Ethereum is a sort of global computer: it doesn’t just handle transactions, it also handles smart contracts which are kind of like little programs that run on top of the blockchain. A common use case for these “programs” is the creation of new tokens on top of the blockchain. Thus, some of the crypto tokens out there actually operate on top of another blockchain like Ethereum.

She also draws a comparison between these tokens to the ideas of “Starbuck Points” or “Frequent Flyer Points”. I like this comparison as it allows for someone with little understanding of crypto to understand that tokens are simply a representation of “something”, even if it doesn’t have any physical backing.

That's all for part 1. Hopefully it's digestible enough in my note-taking form. I still highly recommend listening to the podcast yourself, it's incredible.

I'll post part 2 of my notes tomorrow!

Thanks for reading and please leave any questions or thoughts below, I'll see you in the comments!!!

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Nice Podcast, thanks for sharing

Nice information

Hanyecz was behind the inspirational purchase of two pizzas from Papa John’s for 10,000 not 40,000 Bitcoin (BTC) back on May 22, 2010,
if you know the history of salt when they discovered it, it was like gold, and now it is worth almost nothing. I see cryptomoney as salt


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  • your thoughts

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Bitcoin is up 0.1 percent in the last 30 days, while ether has nosedived 45 percent.
“In this case, bitcoin is acting like more of a safe haven for cryptocurrencies — it’s kind of consolidating,” said Mati Greenspan, analyst at cryptocurrency exchange eToro.

Bitcoin is up 0.1 percent in the last 30 days, while ether has nosedived 45 percent.
“In this case, bitcoin is acting like more of a safe haven for cryptocurrencies — it’s kind of consolidating,” said Mati Greenspan, analyst at cryptocurrency exchange eToro.

Bitcoin is up 0.1 percent in the last 30 days, while ether has nosedived 45 percent.
“In this case, bitcoin is acting like more of a safe haven for cryptocurrencies — it’s kind of consolidating,” said Mati Greenspan, analyst at cryptocurrency exchange eToro.

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