This is certainly true of war and our ability to destroy ourselves. We now have sufficient capability to destroy all life on this planet.
Today, the world is involved in a global fight against terrorism.
What makes this war different to the two world wars of the past century is that there are tens of thousands of combatants who actually want to die and, in the process, kill as many non-believers as they can with them.
They want to cause people to become afraid to travel, even on public transport.
We can expect wars in the future to be fought in ways very different to the past. For example:
Hacking into another nation’s computers, causing them to crash.
The effect of this would be to immobilise communications, as well as key infrastructure such as water, electricity and defence capabilities.
Developing diseases to infect specific people types.
This enables the unaffected invaders to simply take over those who are infected without destroying or damaging valuable infrastructure or the environment.