Scientifically when will humans go extinct? I hear in 100-200 years, then i hear 100k years?

When certain people believe in evolution, how come humans would go extinct. By this believe human would live forever on this earth, keep on evolving.

In 2006, famed physicist Stephen Hawking posed an open question on the Internet: "In a world that is in chaos politically, socially and environmentally, how can the human race sustain another 100 years?"

That's a big fat We Don't Know.

It could happen next year with the "Captain Trips scenario."

Or, our species could persist for more than five million years. Technology has tended to remove natural selection pressures... maybe.

There is no time table for the extinction of a species. A species may become extinct for any number of reasons.

For example, a giant meteor struck the earth 65 million years ago and wiped out all of the dinosaurs because the impact generated so much heat that temperature on earth was "oven-like" above the ground and away from the water.

Climate change may also cause extinction because each species is adapted to its environment and climate change may mean that the ambient temperature and/or humidity may kill off all the individuals. If a rainforest turns into desert, for example, most of the plants would likely become extinct.

Competition with similar species may cause extinctions as well. Ecologists call it competitive exclusion. Modern humans likely exterminated Homo erectus in Asia and Neanderthals in Europe when they migrated out of Africa around 60,000 years ago. They are similar to us but less competitive. Modern humans for example threw spears and can kill the stronger Neanderthals from a distance. Neanderthals do not throw their heavier spears but used them to jab prey at close range.

A lack of prey or starvation (because of drought for example) can also lead to extinction. Humans almost became extinct at some point in the past due to food shortage. In fact, we have evolved larger and larger brains just so we could find enough food to survive.

Overhunting by humans have caused the extinction of many species. The sea otter and elephant seal nearly became extinct because of overhunting. We exterminated the passenger pigeon through overhunting as well. We also caused the extinction of some species by destroying their habitats.

Even though scientists are now looking up in the sky and see if any meteor may be on a collision course with humans, we may nevertheless fail to detect one that is heading straight for us before it is too late. Therefore we cannot say whether we are likely to be wiped out by a giant meteor or not. The same is true of other causes of extinction. One other cause of extinction that I haven't mentioned is disease. A new disease may pop up and it may not be curable. Therefore it is not possible to say how much longer we will continue to live. Our ancestor Homo erectus lasted 1.8 million years. Modern humans have only been around for 200,000 years or less. We may last longer than H. erectus, or we may be extinct before we have been around for that long. It is simply not possible to predict with any degree of accuracy when modern humans will become extinct.

All fake

God made us, no on can go outside this world. No metriors space is your mind. No Dino human kind will last so long you don't get killer vaccines or live in smart houses.

Depends on whether we nuke ourselves into oblivion, a huge asteroid hits earth or some new untreatable epidemic sweeps across the world. None of which can be accurately predicted.

If there isn't a global scale mass extinction event then humans can and most likely will survive for a long long time. Even if the world is turned upside down from global warming or war (with exception of outright nuclear) pockets of humans will survive.

The global human population has been decorated down to just a few million before. We are a pretty hardy species.....unfortunately for Earth.

Inevitably though, there will be a global-scale mass extinction event. It's just a matter of when? And when it comes, are humans able to avoid or escape it?