No aliens

We are not interesting or tasty

The evolution of ad Vance Life in the universe is very difficult.  My niece to survive three mass extinctions.  Humanity got lucky!  Then we get to the problem of space travel.

We have not yet evolved in nuclear fusion drive.  And may be never will.  We need to feed the hydrogen gas, produced by the electrolysis of water into a fusion helix.

Where the titanium plate, capitalises the nuclear fusion of hydrogen into helium.

1 2H⁺+TU+P→He²⁺+E²+X-ray+L wi

So we need about 20 terms of our titanium plated helix.  And even then the again to space out some hydrogen gas with our heated helium.

Which should allow us to buzz around the cellar system.  The we are left with a problem of blocking their radiation from the sun.  Week in use the health centre superconducting magnetic helix, which will replace the earth's magnetic field.

But we are still looking at two years to get to pluto.  Though there is really nothing to see when we get there.

Even mining Titan in was this in a year around journey each way.  With an spacecraft designed to block cellar radiation.

Then we locate further afield.  The new star or is to light years away.  A journey time of 200 years!  During which we need to support a human civilisation.  Heated by a steam plasma providing heat and light, in place of the sun.

The can use such A plasma to drive a power plant carbon free.  Which we could actually developed on earth today!  As they are free E carbon zero heat and electricity system.  Totally non nuclear!

Involving no fossil fuel burn.  But journey into another star you are looking at centuries of journey time.  Why would any alien race to use to come to what was A medieval society.

So not yet developed radio and television!  As you get better at detecting X her planets,  SETI there he is send out a radio signal, there will arrive in 500 years.  We are not that interesting!

Why would Indians can to earth!  Which has a high oxygen atmosphere - massively toxic to most life.  We have evolved to cope with this, but he is are friendly to multi cellular life as a high for rain or snow or rain atmosphere.  Really not friendly!

We're out the extreme end of the milky way.  The interesting societies and life will be nearer the galactic centre.  They can be no immune visits to earth - just not the interesting!