I don’t think any of these issues will wipe us out completely. Maybe they’ll reduce the population by 99% but that still leaves 80 million people, enough to raise a new society from the ashes of this one.

Anyway ignorance, greed, stupidity, and selfishness are not specialities of the human race. They’re common to all animals.

Our unique problem is that we’ve created an environment which is radically different to the one in which we evolved. Look at one simple dimension: food. We evolved to survive scarcity and famine. Our new extreme abundance of food is killing us with obesity. We’ve cracked the code on the molecules our brains used to detect nutritious food and used them to engineer fast food that is addictive like a drug.