Meanwhile, in what now passes for pop culture, a few people rich, motivated or lucky enough to have entered their 70s with their talent just about intact (Paul McCartney, Mick Jagger and Rod Stewart all spring to mind) arguably convince the rest of us of that the stereotypical effects of old age might be down to personal failings rather than the inevitabilities of advancing years.
Since Iran is dependent on imports for 40 percent of the gasoline for its cars and trucks, this is very arguably the most direct, effective means of convincing the regime in Tehran that it has to negotiate an end to its nuclear arms drive.
Arguably Lambert's best piece of business has been convincing Benteke to withdraw his transfer request and sign a new contract, with the Belgian's importance illustrated one again.
However as John Osborne explains, arguably the greatest challenge that the composites industry faces is convincing rail engineers that modern polymer composites which have often been developed for use in aircraft are suitable for use in trains and that the composites are not expensive.
He tried, but failed, to convince Raúl Gonzalez, arguably the most successful striker in Spain at that time, to wear the earpiece in training.
Arguably, the whole city is a street fair these days; no one needs convincing to venture into SoHo.
Creating convincing artificial speech is a hot pursuit right now, with Google arguably in the lead.
Mr Modi has arguably won over Indian business and is showing signs of doing the same with would-be investors, but convincing many of his own people to believe in his vision could be a much trickier task.
Besides, German elections are traditionally won in the political centre and Mr Stoiber would have trouble convincing most people, other than Bavarians, that this is really where he stands.Take note, therefore, of the less spectacular but steady rise of Volker Rühe, arguably the Christian Democrats' toughest talker these days, but no rightist.
