How long do we have?

Welcome

This page is not for everyone - more.

Pages set out with a numbering system enable  . readers to refer to items in discussion and emails  

This page includes:

1  How big

2  Resources

3  Terminology

4  Quick journey

5.1  Realism being real

5.2  The universal  seesaw on which sits the future of humanity.

6  Your contribution

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1  Enormity large size

1. Our journey begins within an expanding universe.  
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3. This aspect is vital to understanding how it works.
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5. It started expanding very soon after the Big Bang.
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7. The Big Bang is the main theory that explains the origins of the universe – how everything was made, including the stars, the planets, and everything that lives on those planets, like us! It's widely believed by most astronomers, as it came about through scientific understanding of physics and chemistry. source
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9. The 'end of everything' is thought to include the possibility that the universe may contract. 
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11. Another vital aspect to understand is the sheer number of space objects included in billions of galaxies.  
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13. Billions upon billions of stars in each galaxy (such as our Milky Way) are all within the process of birth, development and death.
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15. Those many, many stars include those with a high amount of planets which are thought to include life of some sort.  
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17. Mars receives TV etc attention and researchers focus on planets which could only be reached by rockets capable of carrying a few male and female experts and their children and catering  for fifty or more generations.
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19. If that is a large idea, we will be looking at quantities and distances involve 10,000,000,000,000,000,000,000,000 = 10²⁴ .  

2   Resource

1. This comes in a beautiful book which is detailed on the page on my website after the "Talk - 50 mins".  here
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3. When you read red text (apart from page and present section titles) you'll know it's from the book.
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5. Most quotations are further resources as their origin is shown.
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7. Other resources are given in the Appendixes section.

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3  Terminology the language

1. Many, if not most topics, use specialised meanings for perhaps everyday words.  
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3. We left school understanding the basics of gravity, that our planet travels an orbit, and tidal flow tide going out and coming in has something to do with the moon.  
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5. We knew that light travels very fast here.
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7. Although the appendix named "Terms" is for those who want to delve further, some of the specialised terms we need are introduced and explained as needed.  
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9. Most do not find their way to the Terms page.
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11. Some quotations are stripped of unnecessary jargon and other less important text as shown by ....  .  You can see what they are by following up the source.

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4  Quick itinerary travel route

1. We take off from the TALK - 50 mins page.   
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3. After that the book (2.1) detail is given.
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5. We proceed to where the universe began.  The Big Bang.  As it gave birth to the Universe, we look at it in that context.
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7. Knowing that we live in the Milky Way, but possibly unaware it's a galaxy, galaxies are next.
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9. Keeping in the spirit of our galactic address, the solar system is next.
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11. And then we reach Earth and few companions.  A cuppa looms during which you could invade your memory for UFOs.
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13. We'll need our strength for the little green men.  Building on such numbers as 
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15. 10,000,000,000,000,000,000,000,000 = 10²⁴   
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17. in respect to stars and their planets, we can ask the question about the green beings -

                                     Where are they?

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5.1  Realism  

The dinosaurs, ... didn’t have a space programme. And that’s why the dinosaurs are not here today. 

  SIMON WORRALL

1.  You will see on our journey, vast distances are involved in just checking that proposed habitable planets are going to work.
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3. If the aim is to rehouse population people numbers elsewhere, starting with less than half a dozen people on a fifty- generation journey demands that the vehicle shall travel hundreds, even thousands, of times the present speed of rockets. Here are a few examples of how fast rockets travel: To get to low Earth orbit: 7.8 km/s (28,100 km/h; 17,400 mph). To escape Earth's gravity and leave Earth behind: 11.19 km/s (40,284 km/h; 25,031 mph). source
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5. The possibility of travelling at near-light-speed is under investigation by men in white coats. In 1947 humans passed the (much slower) speed of sound, paving the way for the commercial jet and other supersonic faster than sound aircraft. So will it ever be possible for us to travel at light speed? Based on our current understanding of physics and the limits of the natural world, the answer, sadly, is no. source
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7. Your grand-children's grand-children times one hundred may be on board.  
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9. If man is still on board the Earth. 
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11. It seems to be a balance of research into venues places near(er) and farther.  
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13. Mars is nearest but not a lot going for it.  more
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15. Planets many lifetimes distant may have more to offer.  
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17. What time's the next bus?  
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19. Advanced physicists etc are looking at beam-me-up-Scotty techniques to make travel quicker.  
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21. Not in our lifetime.
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23. If you take a look at evolution on Earth, 99.9 percent of all life forms are now extinct. 
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25. When things change, either you adapt or die. 
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27. That’s the law of Mother Nature. 
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29. We face various hazards. 
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31. First of all, we have self-inflicted problems like global warming, nuclear proliferation and bio-engineered germ warfare. 
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33. Plus, Mother Nature has hurled at the Earth a number of extinction cycles. 
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35. The dinosaurs, for example, didn’t have a space program. And that’s why the dinosaurs are not here today.
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37. On the other hand, we shouldn’t use this as an excuse to pollute the Earth, or let global warming run amok. 
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39. We should cure these problems without having to leave for Mars or another planet, because it’s impossible to remove the entire population of Earth to Mars. 
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41. We’re talking about an insurance policy—a back-up plan in case something does happen to the Earth. 
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43. I once talked to Carl Sagan about this, who said, 
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45. “We live in the middle of a shooting gallery with thousands of asteroids in our path that we haven’t even discovered yet.
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47.  So, let’s be at least a two-planet species, as a backup plan.”

source

5.2  The universal  seesaw on which sits the future of humanity.

We might go to Mars within 500 years and miss country walks

                                             OR

Wait 5000 years when there's enough £ to cart the then population to a lush planet via a worm hole  within say five generations life-times.

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