Quantum computers can do multiple things at once whereas current computers can only do one thing at once think about going through a maze quantum computer knows all the paths through the maze and so can make a better decision than having a trace one step after another and the reason that is is because right now computers rely on electrical signals through circuits. And so just like the maison allergy you can only have one electrical signal go through one circuit at a time it's called serialization quantum computers operate in parallel paralysation because they are not physical things their Information and Information can have multiple states at once. Think about opening a surprise gift or even you know a birthday present or your paycheck even these things have Information states they exist but you don't know exactly what it is until you open it up. This is called the measurement problem the measurement issue and so unlike tracy unlike turning on the electrons actual electrons physical things flowe through a wire. Create an electrical circuit which is out today's computers which are called binary computers work and Information state is one of potential this this affects everything from the way light travels which makes which is why by the way light is so difficult to model in a computer with computer graphics and when you think about it, there are so many things that exist as potential until you know exactly what they are and then there physical actuality israelite the maze example right if you are in that maze it exists potential you know that there are a number of ways through it but you don't necessarily know how many ways and b until you make it through you're not sure now let s look up from a bird's eye view that maze exists and all of those possibilities exist as Information states and that s what makes a quantum computer so powerful it's not about a physical thing it's about about possibilities about probabilities or think about being at a casino or playing the lottery all of the things that involve probabilities. Those are all analogous to what makes quantum computers so powerful they can figure out all the chess moves at once or they can figure out all of the possible ways that the roulette wheel or the slot machine may land. These are all statistical probabilities and existing in a physical universe means we only know what actually happens well imagine having knowledge of what could happen that s the power of quantum computers it's about what can happen and then using that to figure out what does happen. The closest we have to this now our routing algorithm so when you ask Google Maps for directions it uses a simplified algorithm to figure out all the possible ways they are actually an infinite number of ways but not all of them are likely. If you're going to the corner store down the block.You're not going to go out of your way to the next major city and then turn around that statistically improbable that s the difference between actualize reality which is what we live in the physical world, and this sort of fuzzy bubble of possible realities which is sort of ties into this consideration of the multiverse the multiverse is what it said it is not parallel universe. The multiverse is an Information state Not reality reality is what you and I are living right now and whatever happens next is determined by what happened before but it's not exclusive and so it's not like there is a copy of you existing somewhere else that s that s a misinterpretation of what an Information state is in the multiverse. Our potential paths potential Information states some of which are more likely than others.This is fundamentally the difference between statistically winning the lottery and actually winning the lottery. And as with statistics the more chances you have the more generally the more likely that gets interdependent versus independent events but reality is very much dependent overall. And so that s the difference between somebody always somebody does win the lottery every day in every state most of the time somebody wins the lottery right now somebody is getting rich or is winning on assortment sheen or somebody is etc etc all of these things are exist in kind of a bubble fuzzy bubble of Information states and when they happen, then those those dependent events converge on reality which we experience here but as is the case with you know our current simplified understanding of that reality, we can t say something has happened when we rely on that I eat electrons through the through the semiconductor that I was talking about. As I say the SIM getting lost walking through poquita nepal right now the streets are not a grid and so that makes for various possibilities and even though I have Google Maps I am not familiar with it the point being I know I am going to get. So here is the interesting thing and here is where I think some ideas about time reversal come in that are misconceived I know I am going to get to my destination but what I don't know is how long it will take me exactly what route I'm going. But as the closer I get the fewer and fewer likely possibilities they are so that Information states slowly starts to shrink and eventually what we call collapses when I get there. It seems that we could probably model the same thing in electrical circuits by adding some randomness where the electrical circuit that computes things doesn't always take exactly the shortest path right now there is a huge assumption with semiconductors. And that is that they will always take the shortest path subject to some constraints like logic gates and what have you and that is the basis for calculation but essentially imagine a calculator. It gives you slightly different results corresponding to some kind of non probability that you know that essentially how are a lot of things work? Uh it's basically the essence of what is called monte carlo simulation where we know statistically how the roulette wheel and is based on the roulette wheel we know statistically how the roulette will land. Overall we just don't know for any particular spin but we can this is used in everything from calculating stock market returns to anything that has none but individually are uncertain or probabilistic outcome for anyone en what is called n equals one. And so that s how financial advisors are are helping people figure out well okay given a range of possibilities we know for as long as the stock market has existed, how can we ensure that you'll have enough even though for any one or 5 or even 10 year period we don't know the market could be in any number of ways but by factoring in that probabilistic state, then we can actually make certain nearly certain judgments and that s quay quantum reality is never certain it's always probabilistic and we have to get our heads around thatDid nothing is ever certain in reality we just construct the fictions that say oh yes or no on our off that s where this idea of analogue realityComputers right now think of reality like a light switch when reality is more like a dimmer switch it has any number of fine turns and different ways it's never strictly speaking with an old fashioned what's called rheostat an analogue dimmer switch. It's never possible to have exactly the same value twice consider that you can't that there is on and then there is off but between that are an infinite or continuum of possibilities. With an old fashioned dimmer which is different now with what are called electronic dimmers but an old fashioned deema you can you will never ever have exactly the same value twice.But it doesn't really matter and in fact it leads to some really interesting possibilities where by by doing that you can actually increase precision with the same dimmer because of that continuum. #quantum #computing #idea #invention #explore