&quot;When I don&#x27;t have to&quot;<p>If I&#x27;m not going to depend on the IDE to tell me what a deduced variable type is, you can bet your ass I&#x27;m going to want to depend on it for autocompleting some of the insanely long type names are: std::chrono::steady_clock::time_point gets old real quick - and so does stead_clock::time_point (if you want to include the namespace).