Why we'll never actually travel to the stars

NOTE FOR 2018 READERS: This is the fourth in a series of open letters to the next century. The series marks a little-known chronological milestone. According to UN data, life expectancy at birth in 18 countries now exceeds 82 years — meaning babies born in 2018 are more likely than not to see the year 2100.

What will the world be like at the other end of those kids' lives? Today's scientific discoveries, Silicon Valley visions, and science fiction can give us glimpses — and in this series of digital time capsules, we also recognize that our hopes and fears can shape what the future will become.  Read more...

More about Books, Culture, Innovations, and Space

from Mashable https://ift.tt/2EJ9Ns2