BC CRYPTO
Saved by @Mollyycolllinss

1/ ERC-20 token standard approve() has caused an unnecessary cost of $53.8M for #Ethereum and #DeFi users

This is bad. Continue reading why and how to avoid this in the future.

👇👇👇

 2/ Before you go all rage on the flaws of my analysis, please read the whole Twitter thread for disclaimers and caveats.
3/ approve() is an unnecessary step of ERC-20 tokens when they interact with smart contracts.

You know this because when you do a Uniswap trade you need press two transaction buttons instead of one.
4/ Why there is approve() - you can read the history in this Twitter thread

https://t.co/ZHXzPBbqJJ
5/ I queried all approve() transactions on Google BigQuery public dataset and calculated their ETH cost and then converted this to the USD with the current ETH price.
6/ These queries were made possible to awesome @EthereumETL team. They have created Google BigQuery dataset from real-time blockchain data. You can query over terabytes of Ethereum data FOR FREE.
7/ Here are instructions on how to execute your own queries:

https://t.co/YnK1p8u75n

(But links are outdated because Google Cloud has new UI)
8/ Total transaction on #Ethereum blockchain: 989,461,092

Woo! One billion transactions will be done in a few days!
9/ Total ERC-20 transfers(): 304,382,558

Includes only Externally Owned Accounts, EOAs.
10/ Total ERC-20 approves(): 14,921,106

Includes only Externally Owned Accounts, EOAs.
11/ The gas cost ERC-20 approves():

41327.870139658684 ETH
12/ Here is my query

https://t.co/FqNWBAxjwt
13/ You can query Ethereum transactions that call a particular smart contract function by the 4-byte signature of the function that is 1st parameter of tx data field.
14/ Binary function signatures are 4-bytes keccak256() hash of the @solidity_lang signature string. Here is an example:
15/ If you are a @solidity_lang or Vyper developer, consider ditching ERC-20 and include alternative token standard in your next token.

Alternatives for ERC-20 include:

ERC-777
ERC-667
ERC-827
ERC-223
(did I miss any?)
16/ Most of the new token standards, like ERC-777 are backwards compatible and work with ERC-20 enabled centralised exchanges.

Centralised exchanges do not need to do anything to support these new, better, token standards that make smart contract and #DeFi interactions safer.
17/ Or let's put it this way...

Every time someone creates a new ERC-20 token, hundreds of thousands of dollars die.

Let's actively demanding non-ERC 20 tokens from developers.

And if that does not work I suggest we start punching ERC-20 developers to face over the internet
18/ Newer token standards may "increase the attack surface", but in practice, this has not been a problem for high-quality #DeFi projects since 2018 or so.
18/ Note that raw approve() cost calculation comparison to newer token standard is not 1:1.

Newer token standards need some similar mechanism to pass user data as the part of the transaction, but this cost is lower compared to additional approve() tx.

Prove me wrong.
19/ FIN

CC @dmihal @FrancescoRenziA @abcoathup

Now I am going to climb the mountain, get fresh air and visit monkies

More from Crypto

Dan Held
Dan Held
@danheld
1/ [December Bitcoin yield update]

Over the last year and a half, I’ve earned ~1.2BTC with various yield generating services to earn an average of 5% on 30 BTC.

Here’s my journey and how to guide👇

2/ Here are the ways you can earn yield:

Lending (Easiest/most popular)
Yield: 3-6%
- Ledn: https://t.co/4x0YATuQ0v
- BlockFi: https://t.co/90Xtg2cNka

Covered calls (Harder)
Yield: 1-80%
- Deribit: https://t.co/2iQVkXlylP
- LedgerX:

3/ Earning a yield enables you to stack more sats (what I’m doing), or reduce the temptation to sell your coin through earning an income.

The yield you earn comes with RISK!

Below is my current allocation for Dec (will update MoM)

(yellow = changes)

https://t.co/PZwVYs8lFT


4a/ [Nov > Dec Changelog]

- Covered calls: approx. 4 BTC was in $40k 12/28/20 contracts. Those closed without them being exercised (a good outcome for me). However, I was nervous about my January 1/28 $50k contract so I decided to close out my position at a small loss.

4b/ [Nov > Dec Changelog]

- In process of reallocating the 5 BTC (probably will be a lending platform).
- I incorrectly had my Ledn rate at 6.5%, it's 6.25%
CRYPTO
Meltem Demirors
Meltem Demirors
@Melt_Dem
1/ crypto VC is going through an explosive 🧨 phase

there are big funds (>$500M AUM), a lot of small funds (<$50M AUM), and *tons* of prop firms + angels

i’ve done 15 deals in the last 3 months as an angel + small fund @CoinSharesCo VC.

observations + implications... 👇🏾

2/ the big firms need to deploy in size - $5M checks and up

a $250M fund could do a $5-10M deal every month for two years and still be under-allocated

and there aren’t enough companies raising series B / C / D rounds!!!

every deal i’ve done lately is under $50M valuation

3/ so we see firms competing to take down entire rounds.

a recent series A financing had two firms competing to take down the ENTIRE ROUND, and it eventually got upsized, a LOT.

if a company is putting up user acquisition / growth and a revenue story, it’s highly competitive

4/ most projects and co’s don’t need money tho - why would a founder take 20-40% dilution when they’re banking cash and crypto? so they do 5-10%

so the valuations go up, but available allocations go down, resulting in an even bigger squeeze on allocators who *need* to deploy

5/ add in the onslaught of non-crypto M&A that’s coming, which is culling the herd of investable unicorns

add in the wave of SPACs and direct listings taking later stage opportunities out

there just aren’t enough places to put capital in size rn

what’s a fund to do?
CRYPTO
Advertisement
Simon DeDeo
Simon DeDeo
@SimonDeDeo
Someone tosses a coin ten times; it comes up heads every time. What's the probability it comes up heads on the next toss? (Pretty darn high—part of @nntaleb's work is unprogramming you from your high-school rules of thumb.) Now consider the (related) Gambler's fallacy...

In this case, it's a theory about compensation: the worse one's luck is, the more likely it is to see a reversal. On the surface, it's irrational. The more bad luck you have, the more you accumulate evidence that the system is rigged.

But there's also an anthropic component. If the luck is bad enough, it starts to become inconsistent with your survival. You've accumulated evidence for correlations in the environment, but these correlations (may be) inconsistent with (people like you) being in this environment.

An example. You're in a city where everyone takes public transport. You encounter a string of bad delays. It's reasonable to conclude they'll end—otherwise people wouldn't take public transport. It's unlikely that you happened to show up right when the network collapses.

Of course, that's a bad heuristic in a casino, which relies on a constant influx of losers. But in other environments, particularly with persistent populations and no evidence for sudden changes in the underlying laws, it makes sense.
CRYPTO
Luke Huizenga
Luke Huizenga
@huizengard_
[BIG THREAD] BitChute is a video-sharing site growing in size after an exodus of upset conservatives from YouTube. Like similar “anti-censorship” platforms, it also is riddled with a disturbing amount of hateful content and blatant disinformation.


Around the time of the Capitol riot, interest in BitChute skyrocketed. It continued to rise as Donald Trump’s channel had videos removed, was suspended, and then finally banned. Although he has yet to arrive on BitChute himself, his followers have moved on from YouTube.


BitChute founder Ray Vahey has called the platform “pro-free expression”, accusing sites that censor their content as building echo chambers that serve only to exacerbate problems. What he fails to recognize is that his own creation has become one itself.


wo massive trends on BitChute are anti-Covid vaccine and pro-Nazi/anti-Semitic propaganda. Both break the site’s Community Guidelines. Below are examples of easily accessible and highly-viewed videos. Bear in mind the medical advice is harmful and the Nazi content is disturbing.


First, the anti-vax disinformation. “Timmy Learns About COVID Vaccines”. Safety precautions are called “enslavement” and “extortion”. Over 5k views.
CRYPTO
Bartek Kiepuszewski
Bartek Kiepuszewski
@bkiepuszewski
[1/13] It may be initially confusing to fully grasp how deposits and withdrawals from L1 to @optimismPBC are actually implemented, and it helps to see the on-chain action of what is happening behind the scenes.

[2/13] Initial setup (simplified): on L1 we have SyntheticBridgeToOptimism from Synthetic and OVM_L1CrossDomainManager from Optimism contracts. On L2 we have SynthetixBridgeToBase and OVM_L2_CrossDomainManager contracts.

[3/13] Additionally we have Sequencer (L2 mining node) that verifies all L2 transactions and submits them in batches to L1 for future reference and Relayer that is responsible for relaying messages from L2 —> L1

[4/13] Step 1 - Alice wants to deposit $SNX to L2. To do that she calls initiateDeposit() method on the L1 SyntheticBridgeToOptimism which takes her $SNX, puts it in the escrow and calls OVM_L1CrossDomainManager sendMessage() method.

[5/13] The CrossDomainManager puts this request to CanonicalTransactionChain (this is an “official” and “unmutable” list of all L2 transactions on L1). As a consequence the Sequencer (L2 mining node) will need to execute this transaction on L2.
CRYPTO

You May Also Like

Elon Musk\u2019s Meme \U0001f171\ufe0fot
Elon Musk’s Meme 🅱️ot...
@theMemesBot
why do I hear boss music
FUN
\u0936\u094d\u0930\u0940\u092e\u093e\u0932\u0940 \u0939\u093f\u0924\u0947\u0936 \u0905\u0935\u0938\u094d\u0925\u0940
श्रीमाली हितेश अवस्थी...
@HiteshAwasthi89
#Thread
Benefits of writing SRI RAMA Jayam!!!

Writing Sri Rama Jayam is known as Likitha Japam- Writing Meditation. This gives one a complete sense of surrender to an inner conscience and peace while writing or chanting the mantras.

#Sri_Rama_Jayam #RamaNavami

Cont 👇

You can write this in any language of your choice. It is the connecting chords with the divine and your inner self.

Below are some points that we came across on the benefits :

Cont 👇

1. Vedas tell that as the sun dispels the darkness, the chanting of Rama Nama dispels all evil and obstacles of life. It is a way of liberation and salvation of human suffering.

2. When you think, that all roads are blocked to walk away from day to day problems..

Cont 👇

writing ‘Sri Ram Ram Ram’ gives you the most needed clarity of thoughts to find away out of odd situations.

3. It was told that a calmness engulfs as one indulges in writing the Sri Rama Jayam bringing in more clarity of mind, tolerance & strength to withstand obstacles in life.

4. Devotion of service of life and its varied forms is devotion to God. So there is no right or wrong way of writing this. The very thought and process to write is a connection with god and finds a inner meaning.

Cont 👇
ALL
Advertisement
Yoruba History - by NNP
Yoruba History - by NN...
@YorubaHistory
The Ife Primary Education Research Project (1970-1983).

aka

The Ife 6-Year Primary Project.


In 1970, as the Director of the Institute of Education of the then University of Ife (now Obafemi Awolowo University, Ile-Ife), later Dean Faculty of Education, Prof. Babs Fafunwa & his team embarked on one of the most groundbreaking research projects in education for Yorubaland.


The aim of the project was to test the hypothesis that the best instructional medium for good concept formation at a very tender age is the mother tongue.

This was bolstered by the observation that “of all the continents and peoples of the world, it is only in Africa…

…that formal education is offered in a language that is foreign to the child.”

So, Yoruba was to be used & tested as an exclusive medium of passing information or instructions to a set of pupils.

The project was based on the premise that:

(a). the child will benefit culturally, socially, linguistically & cognitively.

(b). the child’s command of English will be improved if he is taught English as an entirely separate subject by a specialist teacher through the 6 years.
ALL
Laurie Voss
Laurie Voss
@seldo
The 2018 State of JavaScript survey is out. They got 20,000 responses and have some delicious, delicious data. I'mma thread in some highlights:

First up: JavaScript flavors. There's TypeScript at 47% adoption, a tad higher than npm's own survey results (which said 46%). npm's survey is coming up again soon and will ask about TypeScript in a lot more detail.


I really, *really* like SoJ's "would not use again" question, which lets people who've abandoned a tech self-identify. This is noticeable in the graph above with Flow users -- 41% of people who've used Flow say they wouldn't use it again.

Now JavaScript frameworks. It's been a full year since npm's survey, so these numbers differ from ours in the directions I expected:
React 65% (vs. 60%)
Vue 29% (vs. 24%)
Ember 5% (vs 4%, I was expecting a bigger rise)

But there's a shocker in here: Angular.


npm's survey had Angular at 40% last year and SoJ has it at either:
- 58% (if you include those who don't want to use it again)
- 24% (if you count only those who like it)
Since npm's question didn't ask if they intend to *continue* using it I think that might explain this.
TECH
Maurice Casey
Maurice Casey
@MauriceJCasey
I am reading through reams of late-1920s communist poetry and easily my favourite title so far is: "To a Lady who Rejected a Poem about Spring as a Petit-Bourgeois Deviation"

The last lines:
"So here's my hat into the air,
Three cheers for your amazing hair,
For coal mines, and for turbines, too,
For steel, the Comintern and you!"

A not exactly graceful (though possibly satirical) title: "Lines Disassociating Myself from Yessenin and Supporting the Otherwise Unfounded Legend that I am a Foremost Proletarian Writer"

An excerpt:
"Goodbye verses of Yessenin
Goodbye literary slop-
You are not the line of Lenin
You are not the line of WAPP

Never shall I moan a
simple lyric from the heart
I'll devote my new corona
to the proletarian art"

The poet was Joseph Freeman, who published much of his revolutionary verse in the New Masses, a stylish journal of the interwar American literary Left.
CULTURE


Category Partner: Enkryptopedia