1) That human population combined with our aspirations and consumption function akin to a giant superorganism, and that our aggregate actions are directly causing the 6th great extinction.
2) That nature - and human systems - are based on quality energy and natural resources, 98% of 'labor' in human economies is now done by machines, with 85% of that via fossil slaves (coal, oil and natural gas) - the cost of finding, extracting and delivering these -in addition to rebuildable tech like PV/wind to a complex societal infrastructure is so high as to limit further growth.
3) Most importantly, [that] we don't have an energy or environmental problem so much as a human brain mismatch - we evolved to be 'wrong', and our reflexive responses to our problems are really responses that were formed in the Pleistocene. Until we acknowledge who we are, where we came from, what we're doing and what really motivates us/makes us happy etc, we will continue on current trajectory. But...we are the first generation of our species - of any species to know these things, and our neural plasticity + cultural evolution gives reason for hope.
Everybody movin’ if they ain’t already there
Everybody got to move somewhere
Stick with me baby, stick with me anyhow
Things should start to get interesting right about now