A model is a good model if first it interprets a wide range of observations in terms of a simple and elegant model, and second if the model makes definite predictions that can be tested, and possibly falsified, by observation.
Stephen HawkingGovernment works best under the glare of public scrutiny. Absent such scrutiny, abuses occur.
Stephen HawkingMankind's greatest achievements have come about by talking and its greatest failures by not talking. It doesnโt have to be like this.
Stephen HawkingWe only have to look at ourselves to see how intelligent life might develop into something we wouldnt want to meet. I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach.
Stephen Hawking