Car free city centers sound like a good idea.<p>I wonder if the success Ljubljana has already had is making them arrogant and foolish, though. That &quot;zero waste&quot; strategy sounds like extremism to me. I&#x27;m not saying recycling is bad, but is it really necessary to be so extreme about it?<p>Also, I wonder about the privacy implications of that &quot;smart card&quot; that is being used to check out bikes, pay transit fares etc. Do you have to use your real name and address in order to get it? Does this mean that every single trip that you make is stored in some central database?