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<p>Jon Callas schrieb am 02.08.2026 01:03 (GMT +02:00):</p>
<blockquote cite="mid:A07D1D01-B261-4932-8DD1-A665CB5689AE@callas.org">
<pre>Why full-fledged quantum computers might always be five years away
31 July 2026</pre>
<pre>To predict when we’ll have a truly useful quantum computer, we need to know
precisely what one is. [...]
What is a quantum computer? The question feels deceptively simple. It is a
computer that uses quantum effects to run calculations [...]
</pre>
<p><br>--------------------<br><br>Isn't a oracle this exactly? You have two markets with different prices - and then you take the average price of both markets, that everyone (on both markets) can trade under the same price.<br><br>A quantum effect would be, that one person is selling a water melon here on earth and million light years away on planet X a water melon is also sold. And we can trade on both market with the same price. Exept that you look from earth, in the time you sell your water melon, you just see on Planet X to plant and water the seed.(Out of the earth perspective..<br><br>An oracle has a simular superposition as certain parts of atoms. <br><br>But this is the pricing side - the value side is more important:<br><br>When your friend is buying the only water containing product (water melon) in the center of the desert, next to you, it is cool, wenn you can buy the same product for the same price with an oracle. But I guess it has not the same value for you, when your warer melon is on Planet X. Following the price is depegging, and valuewise your friend is living and you are dead. // Cool, when a computer(!) can calculate the different states/positions of a thing. It is somehow like you want to calculate, when Christ was dying. (Look up the origin of the word "computer"!)<br><br>So what is a quantun computer about? For plain information - or for needs of people = value? <br><br>So the bif question of the definition is not what is a quantum effect. The question is: What is "useful"? (And maybe: For which person?)<br><br>Roland</p>
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