There comes a time when exciting, even visionary, ideas have to face up to reality.
Birmingham City Council leader Mike Whitby is nothing if he isn't a dreamer, engaged and enthused by the possibilities of shaping the city he leads.
But the few details he has revealed about his underground plan for the city - a few days after the competing and subsequently threatened street-level metro scheme finally gained Government approval - only serve to make his stubborn adherence to the project all the more troubling.
First of all there's the cost. It is no great surprise when you think of the logistics involved, but surpassing the £1 billion mark is a far cry from the originally quoted £220 million and the £72 million Centro have already provisionally secured for the tram line.
He confirmed his preferred option would run substantially underground and include more than one line. But it is becoming clearer and clearer that the consultants tasked with making all this workable are struggling.
Their feasibility study was due in May but will now not appear for another few weeks.
The Government approval for the metro line from Snow Hill to Five Ways involved a tortuous process of tweaking the scheme so it met the Government's rigid and challenging cost-benefit test for funding.
A £1 billion-plus scheme would obviously be even more challenging. It is hardly speculative to question whether it is actually possible.
We can praise Coun Whitby for daring to dream but the time has come to end what has become a potentially damaging episode in Birmingham's ongoing renaissance.
Sir Albert Bore recently described the underground as a vanity project putting a number of major regeneration schemes at risk. Not a surprise from a political opponent but it is becoming harder and harder to look at the situation any other way.
Government approval for major public transport schemes in the West Midlands is not something to turn our noses up at.
Birmingham's leaders must swallow their pride and allow the tram line to proceed before the city is strangled to death by congestion. Questions have been raised, one year into the current administration's tenure, about their ability to deliver their key policies.
But in just one sensible decision - by waking from the dream and making the sensible, realistic and brave decision to back the metro scheme - Coun Whitby could actually deliver something the city desperately needs, relatively quickly.
Dealing with anti-social behaviour has proved to be one of the biggest headaches facing politicians. The public is determined that they want something done about yobs, vandals and neighbours from hell. However the solutions are not obvious.
Once, it was easy to argue that poverty was a cause. But the British economy has been strong for many years now, and there are as many opportunities for young people here as in other developed countries. Child poverty has been reduced, and the reformed benefits system based on tax credits, deeply flawed though it may be, cannot be faulted for lack of generosity.
Furthermore, while deep disparities still exist within our education system, school funding has improved and at least some inner city schools are now achieving impressive results.
Yet our culture, far from becoming more refined, has coarsened, with drunkenness and random acts of violence an increasing problem. Ironically, greater wealth may in fact be a factor, as alcohol becomes more easily available across society.
The Government's response, with at least half an eye on the ballot box, has been to impose a range of harsh measures. Some of these are controversial, although there is clearly a public desire to see troublemakers stopped in their tracks.
But even if it can be argued that curfews and anti-social behaviour orders are necessary to reduce bad behaviour, few would claim they are sufficient.
Birmingham councillor Reg Corns has highlighted the urgent need for improved youth facilities, such as clubs, sports grounds and recreation spaces. This is not a side issue. Giving young people something to do must play a key part in any drive against anti-social behaviour.
Many MPs would say that, far from sitting "on their buts", they are already raising these issues. But the councillor's comments are no less worth listening to for this.
Going on holiday with a friend - with no parents in sight - is a rite of passage for many teenagers. The appeal of spending all day in a foreign bar, instead of being dragged around historic buildings, may not last for ever. But it's a fantastic feeling at first.
However, very few of us will have gone as far as the two teenagers who decided to paddle a rubber dinghy to France. What could have been a serious incident ended happily, thanks to the efforts of coastguards. It seems they didn't explain their plan in any detail to their parent. We're not surprised.
Next time, they might try asking mum and dad to stump up the price of a ferry ticket instead.