Hawking left three pieces of advice before he died, people dreaded the first and the third has already happened

Stephen Hawking was one of the world's greatest physicists, but he has left us. Stephen Hawking died at his home on 13 March 2018 at the age of 76. Hawking's death has left many people feeling sorry for him. Many wish that Hawking had not left us so soon, as he could have taken us on a journey to understand the universe and space from more perspectives.

Stephen Hawking warned mankind against reckless access to the Earth's resources and reckless destruction of its environment. Once a critical mass is reached, mankind will face punishment and retribution from nature, which may sometimes exhaust everything and fail to fill the hole it has dug. So where does humanity go from here? Where do we move to once our home on Earth becomes uninhabitable?

Stephen Hawking has been cautioning humanity about the following points, which are both opportunities and crises, as we rapidly develop the technology.

The first is nuclear weapons. To take the initiative, defend the territory and sovereignty of the country, and even want to dominate the world, many countries are behind the research of nuclear weapons. The dangers of nuclear weapons must be clear to everyone. When a nuclear weapon explodes, the area where it is located loses all its vitality because the nuclear radiation level is exceeded. For example, the Fukushima nuclear leak and the Chornobyl nuclear leak are areas that are still uninhabitable to this day.

Once people use nuclear weapons in war, most areas of the planet will likely be uninhabitable. When that happens, humanity will be in a deadly cycle of fighting for shelter and land, and will only end up in destruction.

Second, gene editing may create new viruses. With the continuous development of biomedical technology, humans have made greater progress in gene editing. People have developed gene editing technology mainly to perfect the defects of the human body and allow it to develop better and more freely.

But Hawking said that by creating perfect human bodies through gene editing technology, humans are destabilizing the natural world. This technology may well lead to a new type of virus that cannot be detected with our current technology. No technology can have only good things and no bad things. Once a technology is advertised, it is only beneficial, often because people have not yet discovered its disadvantages.

Thirdly, global climate change. The primary factor in warming is the rise in climate due to the massive emissions of greenhouse gases into the air. Carbon dioxide emissions mainly include respiration, human activities, car exhaust, and industrial waste gases.

With the growth of industry and rampant greenhouse gas emissions, humans are deforesting, which is causing a gradual rise in carbon dioxide emissions. In the long run, the Earth's temperature will rise to an incredible level. At that point, the Earth could well become the next Mars or the next Venus. If the Earth's temperature rises by another 20 degrees, will humans be able to withstand it?

Stephen Hawking's three suggestions are hiding around us, especially as the third one has already appeared. Despite the many measures implemented by countries for this purpose, a complete cure is often not possible and the global climate is still steadily rising. One can now only hope that new energy technologies will continue to develop and that they will do so safely, without creating new environmental problems. Humanity seems to live in harmony on the planet, but many dangers around us just don't explode.

Stephen Hawking was one of the world's greatest physicists, but he has left us.