I can not understand a para in Elisp manual :<br><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">Lisp is unlike many other languages in that its objects are<br>
&quot;self-typing&quot;: the primitive type of each object is implicit in the<br>object itself.  For example, if an object is a vector, nothing can<br>treat it as a number; Lisp knows it is a vector, not a number.<br></blockquote>
<div><br>What is `self-typing&#39; ? thanks <br></div>