http://programmer.ie/tags/signalling/ Recent content in Signalling on Programmer.ie: Modern AI programming Hugo en-us Wed, 12 Aug 2026 02:38:00 +0100 http://programmer.ie/books/digital-life/16-before-there-are-messages/ Wed, 12 Aug 2026 02:38:00 +0100 http://programmer.ie/books/digital-life/16-before-there-are-messages/ <p>In the last chapter, the crystal acquired a past.   Not memory in the biological sense.   Not recollection.   Not understanding.   A recoverable past.</p> <p>We learned that a complete checkpoint could continue the process exactly, that an event history could reconstruct the route by which the present morphology had formed, and that the same checkpoint could be used as a branch point for controlled alternative futures.</p> <p>That gave us something new:</p> <ul> <li>A present that could be resumed.</li> <li>A past that could be reconstructed.</li> <li>A future that could be forked.</li> </ul> <p>The next temptation was obvious.   If one Digital Crystal can preserve state and history, perhaps two crystals can communicate.</p>