Healthy debate is crucial in investing. This is because we all have blind spots and we need to bang our heads together to check what is wrong with our investment thesis. Did we miss anything? Did we overlook a big risk? I looked at my worst performing names over the years. They were usually stocks that I didn't debate with anyone. I just analyzed on my own and bought it, thinking it was cheap, had a good story and I knew all the risks. I have learnt my lesson. To invest well, engage in healthy debates. But, most importantly, the debate has to be healthy.  Unhealthy debate, which we just saw with Trump and Biden, open a new can of worms or just opened worms that can debate unhealthily amongst themselves. I don't even know which is worse. Maybe watching Trump is worse than a can of worms. If I...