BC QUANTUM

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Alan Szepieniec
@aszepieniec 5 years, 4 months ago 478 views

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https://t.co/Lhn4i1EGfq Time for a thread. 1/13

I read this article so you don't have to. 2/13

Can quantum computers attack crypto in ways that current supercomputer clusters can't? Yes. 3/13

But quantum computers don't exist yet (as far as we know), and they can only meaningfully attack some crypto algorithms -- typically public key algorithms. Except for rare edge cases, symmetric crypto remains mostly unaffected. 4/13

There is an active domain of research called 'post-quantum cryptography'. It is populated by mathematicians and computer scientists, who develop cryptography that can serve as a drop-in replacement for the affected algorithms. 5/13

The company in question is run by physicists. As a rule, physicists are clueless about cryptography. 6/13

The attack involves quantum annealing, which is a physical process akin to brute force search. It does not outperform Grover's algorithm in terms of computational complexity. 7/13

Grover's algorithm is the quantum analogue of brute force search. You need a quantum computer to implement Grover's algorithm, but you might not need a quantum computer to do quantum annealing. 8/13

Grover's algorithm is not enough to jeopardize the security of AES. You need an algorithmic or mathematical insight to do that. Such an insight would make the discoverer instantly famous in the crypto world. 9/13

AES is not a hash function and makes no claims about inversion being hard. It is not clear if this implication is the result of the reporter's confusion or if Terra Quantum's claim to fame actually is being able to invert AES. 10/13

Terra Quantum has developed an alternative to using AES for encryption based on quantum key distribution. If AES is secure, then there is no merit to quantum key distribution. In order to sell QKD, you need AES to be insecure. 11/13

How convenient that this breakthrough result about the supposed insecurity of AES is found just as Terra Quantum receives a patent for its technology! The convenience would be complete if they were in the middle of fundraising. 12/13

I have written about quantum key distribution before. TLDR: don't. https://t.co/4lxnot8pN4 13/13

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Vibhu Vashisth
@VIBHU_Tweet

Did you know?

When Saudi Arabia's King visited India in 1955, PM Nehru ordered all the Hindu Temples and Idols of Hindu Deities that came in Saudi King's way to be covered up.
Our temples are the architectural marvels in their own league.

Each of our temples tells the story of our rich history and cultural heritage. Was Nehru that ashamed of his own nation's heritage that he had to cover them up or there was some other reason? The answer would be best known to him only.

PM Nehru invited the then Saudi King Saud bin Abdul Aziz to India who accepted the invitation and planned a 17 day long official visit to India in 1955. Saudi King had brought a large delegation with him and he had to visit various Indian cities like Mumbai, Hyderabad, Agra,

Aligarh, Shimla, Mysore and Varanasi. However, when Saudi King reached Varanasi, Nehru ordered to cover all the temples and Idols with curtains that came in the way of the Royal Convoy. During his stay in Varanasi, Govt buildings were painted with the words "Kalma Tayyiba".

'Kalma Tayyiba' means 'There is not God but only Allah and Mohammed is his messenger'. In addition to it, Pooja and Aartis were also stopped at temples. I can call it the appeasement politics of the highest order and Nehru was indeed the greatest appeaser of all times.

Reshu Nath
@ReshuNath

'Tera mera rishta kya, hindu, hindu,hindutva' is a clear take on 'tera mera rishta kya,la ilaha illallah'. As much as Hindutva hates the monotheistic religions especially Islam, there's a strange wistfulness and subliminal need at display now, to BE that they hate. 1

Charlie Hebdo doesn’t come up as a cautionary tale now but rather 'why cant we be like that'?
Growing up, Hanuman was an adorable deity for us, who swallowed the sun, or who couldn’t figure out what was Sanjeevani booti so he picked up a whole mountain and came back with it. 2

Or he was loyal, admirable and when he cleaved his chest, you saw both Ram and Sita. Now we have a lot of “Angry Hanuman” stickers. Why is a cute childlike God angry? We don’t know. It's a convenient blank space where to paint all the angst of Hindu Khatre mein hain narrative. 3

The other strange thing that has started happening is pictures of Ram appearing sans Sita. “Jai Siya Ram” has become “Jai Shri Ram”. Some people disingenuously explain it as being the same thing - because Shri is a name of Lakshmi. Not really. Siya is an apbhransh of Sita. 4

Shri is a prefix of respect in this case. Hinduism is being militarised. A woman/Sita has no place in it. Even the militaristic Goddess that is Durga has no place in this conception of neo-Hindu divinity, as evidenced by Dilip Mandal wondering where Durga came from. 5

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Yoruba History - by NN...
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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.

Aditya Todmal
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A THREAD ON @SarangSood

Decoded his way of analysis/logics for everyone to easily understand.

Have covered:
1. Analysis of volatility, how to foresee/signs.
2. Workbook
3. When to sell options
4. Diff category of days
5. How movement of option prices tell us what will happen

1. Keeps following volatility super closely.

Makes 7-8 different strategies to give him a sense of what's going on.

Whichever gives highest profit he trades in.

I am quite different from your style. I follow the market's volatility very closely. I have mock positions in 7-8 different strategies which allows me to stay connected. Whichever gives best profit is usually the one i trade in.
— Sarang Sood (@SarangSood) August 13, 2019

2. Theta falls when market moves.
Falls where market is headed towards not on our original position.

Anilji most of the time these days Theta only falls when market moves. So the Theta actually falls where market has moved to, not where our position was in the first place. By shifting we can come close to capturing the Theta fall but not always.
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3. If you're an options seller then sell only when volatility is dropping, there is a high probability of you making the right trade and getting profit as a result

He believes in a market operator, if market mover sells volatility Sarang Sir joins him.

This week has been great so far. The main aim is to be in the right side of the volatility, rest the market will reward.
— Sarang Sood (@SarangSood) July 3, 2019

4. Theta decay vs Fall in vega

Sell when Vega is falling rather than for theta decay. You won't be trapped and higher probability of making profit.

There is a difference between theta decay & fall in vega. Decay is certain but there is no guaranteed profit as delta moves can increase cost. Fall in vega on the other hand is backed by a powerful force that sells options and gives handsome returns. Our job is to identify them.
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$TXgrlWatching\U0001f4bb\u2694\U0001f6e1$

TXgrlWatching💻⚔🛡...
@VeritasTXgem

Thread A History lesson for the MOAB:
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Everyone in the country is about to get a harsh lesson on what this really means...

2. In 1871, February 21: Congress Passes an Act to Provide a Government for the District of Columbia, also known as the Act of 1871.

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