Ciro Santilli @cirosantilli 40

The ultimate computer user-interface!

Brain-computer interfaces could be the next big thing.

And life extension? worldbuilding.stackexchange.com/questions/112022/would-an-invasive-spinal-cord-brain-computer-interface-allow-healthy-individuals

Main article: Section "Brain-computer interface".

This is one of the deep tech bets that Ciro Santilli would put his money in as of 2020.

How hard could it be? You just have to learn the encoding of the neural spine/eyes/ear, add an invasive device that multiplexes it, and then the benefits could be mind blowing.

Musk approves.

Interestingly and obviously, the initial advances in the area are happening for people that have hearing or vision difficulties. Since they already have a deficient sense, you don't lose that much by a failed attempt.

Hearing is likely to be the first since it feels the simplest. Ciro heard there are even already clinical applications there. TODO source.

There are two ways:

Likely implies whole brain emulation and therefore AGI.

The video from futureai.guru/technologies/brian-simulator-ii-open-source-agi-toolkit/ shows a demo of the possibly non open source version. They have a GUI neuron viewer and editor, which is kind of cool.

Notation used in quantum mechanics.

Ket is just a vector. Though generally in the context of quantum mechanics, this is an infinite dimensional vector in a Hilbert space like $L^2$.

Bra is just the dual vector corresponding to a ket, or in other words projection linear operator, i.e. a linear function which can act on a given vector and returns a single complex number. Also known as... dot product.

For example:is basically a fancy way of saying:that is: we are taking the projection of $y$ along the $x$ direction. Note that in the ordinary dot product notation however, we don't differentiate as clearly what is a vector and what is an operator, while the bra-ket notation makes it clear.

The projection operator is completely specified by the vector that we are projecting it on. This is why the bracket notation makes sense.

It also has the merit of clearly differentiating vectors from operators. E.g. it is not very clear in $x\cdot y$ that $x$ is an operator and $y$ is a vector, except due to the relative position to the dot. This is especially bad when we start manipulating operators by themselves without vectors.

This notation is widely used in quantum mechanics because calculating the probability of getting a certain outcome for an experiment is calculated by taking the projection of a state on one an eigenvalue basis vector as explained at: Section "Mathematical formulation of quantum mechanics".

Making the projection operator "look like a thing" (the bra) is nice because we can add and multiply them much like we can for vectors (they also form a vector space), e.g.:just means taking the projection along the $x+y$ direction.

Ciro Santilli thinks that this notation is a bit over-engineered. Notably the bra's are just vectors, which we should just write as usual with $\overrightarrow{v}$... the bra thing makes it look scarier than it needs to be. And then we should just find a different notation for the projection part.

Maybe Dirac chose it because of the appeal of the women's piece of clothing: bra, in an irresistible call from British humour.

But in any case, alas, we are now stuck with it.

The Portuguese term for it is "música popular brasileira". The widely recognized Brazilian acronym is "MPB".

"Brazilian pop" and "Br-pop" are inventions by Ciro Santilli, which are how Ciro thinks Brazil should market it to the world.

Unfortunately "B-pop" is too ambiguous with British pop music, and should be avoided.

YouTube playlist by Ciro Santilli containing all the songs in this section: www.youtube.com/playlist?list=PLcZOZrP1P_V4_SBDnegcLTcP-5YhNmWBB

Bibliography:

Self promoted at:Not self-promoted at:

Reactor of the Hanford site of the produced the plutonium used for Trinity and Fat Man.

This was the first full scale nuclear reactor in the world, and was brought up slowly to test it out.

This is how electronic circuits are normally prototyped!

Once you validate them like this, the next step is usually to move on to printed circuit boards for more reliable production setups.

Breadboards are a thing of beauty and wonder.

To break the meta means to find a new strategy that offers a significant advantage over the existing meta.

For the specific of video game glitch breaks see: Section "Meta breaking glitch".

Due to Ciro Santilli's self perceived creative personality, Ciro Santilli is very attracted to meta breaks.

By Zuckerberg. The selection seems decent. And natural sciences only, which is good. A bit more application oriented than the Nobel Prize it seems, e.g. 2022 separates physics and fundamental physics.

Appears to explain award reasoning even worse than the Nobel Foundation.