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    Again, I am not talking about perfect performance. It is enough for
    Siri to recognize what kind of questions it is unlikely to give a
    satisfactory answer to (essentially just a supervised learning
    problem of mapping questions to user satisfaction) and say it. It
    will sometimes make mistakes, but that is practically OK. Note the
    huge gulf between mathematical in-principle arguments and actual
    computational feasibility. <br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 2016-03-13 22:32, John Clark wrote:<br>
    </div>
    <blockquote
cite="mid:CAJPayv2tTWFU3LYADOqyyTsqBZBhwuojOE=6rpVCeZyPvxh96Q@mail.gmail.com"
      type="cite">
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            style="font-family:arial,sans-serif">On Sun, Mar 13, 2016 at
            2:26 PM, Anders Sandberg </span><span dir="ltr"
            style="font-family:arial,sans-serif"><<a
              moz-do-not-send="true" href="mailto:anders@aleph.se"
              target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:anders@aleph.se">anders@aleph.se</a></a>></span><span
            style="font-family:arial,sans-serif"> wrote:</span><br>
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          <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span
              style="font-size:12.8px">
              <div class="gmail_default"
                style="font-family:arial,helvetica,sans-serif;display:inline">​
                > ​</div>
              In principle a learning system might even be able to learn
              what it cannot do, avoiding wasting time </span></blockquote>
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                style="font-family:arial,helvetica,sans-serif;display:inline">​
                But Turing tells us in general that can not be done.
                Maybe looking for a example to prove that the </div>
              Goldbach conjecture
              <div class="gmail_default"
                style="font-family:arial,helvetica,sans-serif;display:inline">​
                is wrong is a waste of time and maybe it's not, ​and
                maybe looking for a proof that </div>
              Goldbach
              <div class="gmail_default"
                style="font-family:arial,helvetica,sans-serif;display:inline">​
                is right is a waste of time and maybe it's not; and
                maybe Goldbach is true but not provable so both things
                are a waste of time. T</div>
              <div class="gmail_default"
                style="font-family:arial,helvetica,sans-serif;display:inline">hat
                is why a AI, or any form of intelligence, needs both the
                ability to get bored and the ability to disobey an
                order.​</div>
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          <div><font size="4"><br>
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          <div>
            <div class="gmail_default"
              style="font-family:arial,helvetica,sans-serif"><font
                size="4">​ John K Clark ​</font></div>
            <br>
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      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Anders Sandberg
Future of Humanity Institute
Oxford Martin School
Oxford University</pre>
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