kirtu wrote:No - nuclear power is the intermediate stepping stone to massive space based power collection (this can be done without nuclear power - what I mean is that nuclear power will by necessity have to be reinvigorated over the 40 year buildup of orbiting and moon based massive solar collection).
So when is this massive space based solar collection supposed to happen?
It was first raised by Professor Gerard K. O'Neill and possibly Tsiolkovsky or Oberth before him (although not in the form of beaming energy to Earth). With O'Neil, these were supposed to have been begun in the early 80's, with demo projects in the late 70's.It is being revisited
with a timeline beginning in about 20 years.
In the meanwhile, resource limitations down on earth could easily render such projects infeasible and unaffordable.
No, we have resources sufficient to continue doing what we are doing in the same old bad, inefficient way for several hundred years (with oil being a potential serious problem). Of course we shouldn't continue ding what we have been doing they same old, bad way and we should strive for Clarke's/Roddenberry's resurgent human project but this isn't being focused on.
There's plenty of people likewise saying fusion will allow us to continue living our gluttonous lifestyles.
If we can generate real fusion power then the very word gluttonous will be placed in the dustbin of history. However fusion energy is still a ways off.
No, the reality is that we are living beyond our means and in due time our industrial lifestyles will be severely downsized.
We do, but changes that have to be made are not as severe as you have outlined in the past. The facts are that humanity could in fact transform this planet into a material utopia with all poverty and want completely banished and humanity unleashed to peacefully explore the universe in all it's diversity. But humanity in not on board with that idea,
And Germany is still on target for hitting their extremely ambitious renewable power goals. As of 2012, Germany produces 25% of it's electricity from renewable sources.
Their power grid ain't working as well as it is supposed to.http://www.spiegel.de/international/ger ... 10816.html
That is correct. However they will work it out. They look at the actual constraints dictated by physics and are not about to become the people of "can''t do" like native English-speakers have in fact become (thinking about this more, this manifestation of "can't do" is understandable in the US as a result of the rampant anti-intellectualism that forms a major cultural current, and in the UK as a result of undereducation and classisim [classism on this point also has to play a role in the US] - I suppose that the social mechanism in Canada is between the two - but it took Tommy Douglas in Saskatchewan to get universal health care started in English speaking countries showing that a person with an idea can effect change)
Even if they manage to keep the lights on with renewables, how many of their consumer products are manufactured in China using coal and thereafter shipped using petroleum?
It will take a while for humanity to ween itself off petroleum but of course we can also use synthetic petrol.
Not everything has a technological fix. The sooner people realize that, the sooner we can move on to less damaging ways of living, but even then the process is going to be extremely painful.
The real problem is a lack of vision coupled with general undereducation and Ludditism as well as elites oppressing those not in power and keeping people, in effect, from improving their lives. The social systems of the world present serious obstacles to people unleashing their creative technological potential and applying solutions very much in reach.