I came across an interesting article in the Feb/Mar 2010 issue of the Australian Sky and Telescope magazine. It is titled "Where have all the aliens gone? by Jacob Haqq-Misra and Seth D Baum.
In 1950 Enrico Fermi "...made a back-of-the-envelope calculation to estimate the time required for a technological civilisation to spread throughout the galaxy."
"So if any technological extraterrestrial society exists, then they should have visited us by now."
Arguments put forward to explain why we are not being visited by ETs include:
* Life on Earth is a statistical anomaly
* Civilisations blow themselves up
* A Prime Directive may prevent them from revealing themselves.
The authors of this article question Fermi's assumptions and suggest that "If growth outstrips resources, human civilisation may collapse." Therefore, perhaps this explains the absence of ET visits to Earth.
This blog was initiated by Pauline Wilson, an Adelaide based UFO researcher, in 2009. When Pauline's interests moved on to other things,...
Introduction Earlier this year, the UK government's National Archives , released a further batch of fifteen UAP files. I recently had...
Background This is the fifth in a series of posts, drawn from material to be found in the 2017 release of UAP files by the United Kingdom...
Background This is the fourth in my series of posts based on material from the 2017 United Kingdom UAP files release. The UK National Arc...