How to disembowel an economy

Last week the Melbourne Mining Club held its bi-monthly “Cutting Edge Event”. This showcases small-cap and mid-cap mining companies, and it's generally the good ones that get the chance to present. It's well attended, well run, and there's no danger of missing your dinner either, as a bell lets the speaker know when their brief time slot is running out. To keep it rolling along, there's only time a few questions after each speaker.

But the night's slick operation could have been streamlined even further by posing all the presenters with the one question that investors wanted answered:
How will the proposed Resource Super Profit Tax (RSPT) affect operations?

I couldn't have framed the…