I'M sure politicians don't mean to lie, but they do.

It's in their DNA; they just can't help themselves. And when they're caught out, which they often are, they find ways of explaining what they've done that doesn't make them seem so bad. In the US, they'll grudgingly admit that they "misspoke"; here their get-out is to claim they were misquoted or misrepresented, their remarks taken out of context by venal journalists.

For politicians, facts are made of rubber, to be manipulated in whichever manner suits their argument. Such, surely, is the case with both sides in the independence debate.

Last week I chaired one in Musselburgh which was organised by the Yes campaign and which a couple of hundred people attended, some from as far afield as Granton and Prestonpans, while several hundred others followed it online.

By and large it was an upbeat occasion and remarkable for the lack of inter-party sniping. Having said that, there were no representatives on the platform from the Labour or Conservative parties, which probably would have had an impact on the tone.

Nevertheless, it was, said a former Labour councillor, enjoyable, even inspiring, and the biggest political event in the town in living memory. Indeed, it may have been the biggest since Gladstone's Midlothian campaign.

In the course of it, an SNP MSP flourished a leaflet distributed by the Better Together lobby. It was, he said, no more than a tissue of untruths, designed to discredit his side's case and make the electorate fearful not only for their physical safety but their economic well-being.

To the MSP this was manna. The more porkies the opposition spread, he intimated, the less credible would be its arguments and the more likely that its support would crumble and die. He preferred statistics, of which he had more than a few up his sleeve. This is always a good debating ploy. Statistics exude authority, especially when there's no chance of checking their validity. As someone once said, "there's lies, damned lies, and statistics".

Here, then, is a statistic for you to chew on. According to Liz Cameron, head of Glasgow Chamber of Commerce, 60% of businesses do not reckon they've got enough information with which to form a view on whether independence would be good for them. Here's another statistic: 70% responded that independence would "affect" their businesses.

I have no way of assessing the accuracy of these figures but, knowing Ms Cameron, I have no reason to doubt their validity. But how meaningful are they? Of course independence will "affect" businesses; so, too, might a freezing summer or a scorching winter.

What's more concerning is that businessfolk say they don't have enough information to make a judgment. This is a common cry and one I often utter myself. As the debate progresses, and each side does its damnedest to best the other, it's easy to feel flummoxed. In or out of the EU? The euro or the pound? The Queen or Nicola Sturgeon? Membership of Nato or be nuked by the Faroe Islands?

The nature of debate is to score points and to say whatever is necessary to torpedo opponents. That much we must take as read. But the referendum on independence calls for a higher level of sophistication than most other issues. Doubtless there are a few facts which the Yeah and Nae camps can agree upon; for the most part, however, there is more shade than light.

For instance, no-one really knows how long North Sea oil will last. Or if the Tories will be re-elected at Westminster, thus precipitating a vote on Britain's future in Europe. Nor do we know when the next societal tsunami will hit. No-one – or no-one anyone was listening to – foresaw the banking crisis. Or, come to that, the impact of the internet.

It would be good, therefore, if from time to time politicians admitted they were bereft of answers rather than fib. Is that too much to hope for? Perhaps. But, as Blair Jenkins, chief executive of the Yes campaign, said in Musselburgh that night – come what may next September – we will all have to go on living together, preferably in harmony, and the quicker everyone grasps that fact the better.