prev <a href="/en/Part%20of%20it%20disappears%2C%20part%20of%20it%20remains%2C%20and%20a%20new%20one%20is%20born.">Part of it disappears, part of it remains, and a new one is born.</a>
<ul>
<li>I wrote here, &quot;It&#39;s important that it&#39;s X and X&#39;.&quot;<ul>
<li>There is no clear switching epoch, and both concepts are referred to by the same term because they move smoothly</li>
</ul>
</li>
<li>This is illustrated even more clearly</li>
</ul>
<img src="https://gyazo.com/ba9045303f6e5786b578be1c5f68fe01/thumb/1000" alt="image">
<ul>
<li>At some point the word X meant A or B, not C.
</li>
<li>At another point in time, the word X meant B or C and no longer meant A.
</li>
<li><a href="/en/shift">shift</a> of <a href="/en/concept">concept</a>
</li>
</ul>
A similar example of &quot;<a href="/en/concept%20changes%20over%20time">concept changes over time</a>&quot; is often &quot;<a href="/en/concept%20refers%20to">concept refers to</a> expanding
 - <a href="/en/Buzzword%20is%20low%20resolution.">Buzzword is low resolution.</a>
 - <a href="/en/Technology%20and%20Buzzwords">Technology and Buzzwords</a>
 - <a href="/en/Deteriorated%20copies%20spread">Deteriorated copies spread</a>
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Conceptual Shift