Some argue that humans are already hybrid creatures, that we have sufficiently fused our biological lives with technology that functions to extend our natural abilities. Accessing encyclopedias through a smart phone is but one example. “The rate of expansion of solar energy has been doubling every two years for the past two decades which, [futurist Ray Kurzweil] insists, means that solar power will meet all energy needs in 20 years. When the human genome project started, sceptics argued it would take centuries to scan an entire human genome using prevailing technologies; in fact, thanks to exponential advances in sequencing technology, it was done in less than 15 years.”
"I grew up in New Jersey in the 1970s and that experience gave me everything I needed to become a skeptic."
The paper does not prove the existence of dark matter, but it mostly eliminates a rival theory called Modified Newtonian Dynamics.
How to figure out the right amount of time for any project.