{"id":2927,"date":"2026-06-09T16:35:22","date_gmt":"2026-06-09T23:35:22","guid":{"rendered":"https:\/\/daviddilworth.com\/it\/?p=2927"},"modified":"2026-06-10T12:52:51","modified_gmt":"2026-06-10T19:52:51","slug":"quantum-computing-isnt","status":"publish","type":"post","link":"https:\/\/daviddilworth.com\/it\/quantum-computing-isnt\/","title":{"rendered":"Quantum Computing Isn’t"},"content":{"rendered":"

Although “Quantum” means digital, quantum processing<\/strong><\/em> is not digital, as in integers. Why?<\/p>\n

    \n
  1. Fuzzy vs Determinative <\/strong>(Probabilty vs Certainty)
    \n<\/strong><\/li>\n<\/ol>\n

    Quantum processing<\/strong><\/em> gives fuzzy, varying, statistical, non-replicable, erratic, or analog answers.<\/p>\n

    Digital computing by contrast gives explicitly digital, replicable exact answers.<\/p>\n

    Example: Wind Speed Estimation vs Password Cracking<\/strong><\/p>\n

    We simply can’t crack a lost password with analog, non-replicable or fuzzy answers.<\/p>\n

    But for problems that don’t need exact answers like estimating wind speeds, quantum computing may(?) be worthwhile. Or for many-dimensional problems involving millions of variables<\/strong> like weather modeling they might someday be helpful.<\/p>\n

    <\/p>\n

    2. Quantum Error Correction is Unsolvable<\/strong><\/p>\n

    There is no such thing as Determinative Quantum Memory<\/strong><\/p>\n

    Just as quantum processing results are fuzzy, the errors it produces are also fuzzy. And can’t be moved to or processed with digital memory.<\/p>\n

    3. Quantum Computers Cannot Exist without Determinative Quantum Memory<\/strong><\/p>\n

    . . . which does not exist (See #2 above).<\/p>\n

    So why are you throwing good money at Science-Fiction?<\/strong><\/p>\n

    # # #<\/p>\n

    Notes:<\/p>\n

    “Quantum computers: what are they good for? For now, absolutely nothing.<\/strong><\/em><\/a>” Brooks, Michael (24 May 2023). Nature. 617 (7962): S1\u2013S3.<\/p>\n

    How Far Can Quantum Computing Go without Quantum Memory?<\/strong><\/em><\/a>
    \nGeorge Sidman, 2024 Medium.com<\/p>\n

     <\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    Although “Quantum” means digital, quantum processing is not digital, as in integers. Why? Fuzzy vs Determinative (Probabilty vs Certainty) Quantum processing gives fuzzy, varying, statistical, non-replicable, erratic, or analog answers. Digital computing by contrast gives explicitly digital, replicable exact answers. … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[3,4,20,7,194],"tags":[],"class_list":["post-2927","post","type-post","status-publish","format-standard","hentry","category-computers","category-design-tech","category-doing-bad","category-engineering","category-wasting-money-or-time"],"_links":{"self":[{"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/posts\/2927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/comments?post=2927"}],"version-history":[{"count":3,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/posts\/2927\/revisions"}],"predecessor-version":[{"id":2932,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/posts\/2927\/revisions\/2932"}],"wp:attachment":[{"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/media?parent=2927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/categories?post=2927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daviddilworth.com\/it\/wp-json\/wp\/v2\/tags?post=2927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}