><span class="bold"><strong>It's unnecessary</strong></span>: the
        connection syntax supplied by Boost.Signals2 is no less
        powerful that that supplied by the <code class="computeroutput">+=</code>
        operator. The savings in typing (<code class="computeroutput">connect()</code>
        vs. <code class="computeroutput">+=</code>) is essentially negligible. Furthermore,
        one could argue that calling <code class="computeroutput">connect()</code> is more
        readable than an overl