Basically, debate is an art of convincing and persuasion... It all stems from the structure of your issues and then the articulation providing the flow... And how you use opponent's offense and turn it into your defense... So, your brain has to work super fast in listening the points given by the opponent, find their inconsistencies, and state your points and do everything within a certain time limit with a clear speech...
It's like breaking down an ugly picture into fragments and rebuilding with your very own materials and it has to be nice and presentable... It takes a certain maturity in thinking in order to do all these... Maybe, that's why it's called debate and not arguments... The picture of argument that I have in mind is when 2 lil kids plays LEGO or something, 1 of them got so pissed that he/she just destroys everything... That's how arguments come about I THINK...
Apply this theologically, i.e. during evangelism, find their inconsistencies, break it down, present the truth... If only I have 2 brains, evangelizing to 2 Einstein's wouldn't be a problem... Note, it's just evangelism, not conversion...
But then again, everything that is debatable is only a subjective opinion... Worse still, there might be no point in debating over certain issues... So then, what's the point of even debating about it???
Where is the objectivity?!
Saw this on a T-shirt: We have so many needs in our life, at the end of the day, the only need is to be needed... How true it is for a selfish man...