When asked what human trait would he like to change, Stephen Hawking replied that it is aggression (as in determining war, as far as I understand from this piece). It might have helped us in the dawn of humanity to insure survival but seems set to bury us now. That humanity seems set for self-destruction is not a new idea. The SF literature is full of Apocalyptic scenarios. Most religions take such event as unavoidable. Sigmund Freud and Arthur Schopenhauer wrote extensively about Thanatos (the death drive towards self-destruction) as opposing Eros (survival instincts), both primal human drives. You got the picture: the Force is strong with this one idea.
Far from me to contradict Hawking; even farthest to think that humanity is not inflicted with the disease of self-destruction. I just do not think aggression helped with anything. Except bringing us closer to our own demise. In addition, humanity did not just survive. It thrived, built civilizations. Getting close to destroying an entire planet on the way, but let´s not get lost in details. It innovated, surpassing its own physical limits driven by curiosity. But when I look back at the history of the human race, the most powerful force I see is not aggressiveness. Sure it might be there, as it is always fueled by those who rule. But I see a more primordial force: curiosity. It is truly helping us survive, learn, grow, evolve. As it is bottomless, so are our prospects. If we do not kill each other on the way, that is. Yes, due to aggressiveness but sometimes also due to curiosity. That is why experience taught us to exert a degree of caution when pursuing things that intrigue us. Not to be in the way of progress, but just saying. Maybe less bull and more…I do not know, dolphin?