The Future, little by little

Last Sunday, while driving back from my cousin's wedding in Sydney, I saw a number of those big traffic signs that are connected to some magical system somewhere and report of traffic conditions and possible delays. Nothing tricky so far. There were no traffic dramas to report, so the signs all simply said "Please report any traffic problems on 13xxxx".

It took a few seconds to sink in, and then I realised that the underlying assumption was that most cars would contain a mobile phone.