There are a number of benefits to concepts:<p>- They make namespacing of functions easier, eliminating the need for C++&#x27;s &quot;argument-dependent lookup&quot;. The issues here are somewhat subtle and would take a lot of space to explain. But the end result is that we can remove a massive amount of confusion by getting rid of ADL.<p>- Error messages are much better, because the insides of templates never leak to users of the template.<p>- Typechecking is simplified, because we only have to typecheck each template once, at the time of definition, as opposed to repeatedly typechecking it from scratch every time it&#x27;s instantiated. This, in theory, allows compilation to be faster.