The biggest reason for needing to colonize space is a closed and shrunken world. But it seems you can never prove a negative until it is far too late in the game. But I will a few, again.
I once read that primitive Man needed around five square miles of territory per person living for adequate support. That now civilized man,
thanks to great advances in science and technology over the ages, needs only some square feet in measurement, rather than square miles, per person for adequate support. This is as wrong as wrong can be. Modern Man needs thousands of square miles per person to support a single person in our age and, of course, most aren't getting their space. What is ignored is that territory per person now overlaps into other people's territory savagely more now than at any time before in the history of Man.
Take a look at anything in your home or workplace you use, including the food you eat. You will probably find that more than 90 percent of everything you have was produced at a distance far more than just a few miles away. People hundreds and thousands of miles distant from you reach directly into your life, manipulating your life directly, as if they right there next to
you to do it. Powers and reach of each human living has increased two million fold over primitive Man, so an Osama bin Laden, or a Sadam Hussein, or a Hillary Clinton, or a delegate to a conference in Genova or Durbin you think you can dismiss as having no control over you, can reach out and touch you immediately, if not sooner, immediately and forcibly, from Afghanistan,
Iraq, Washington, Genoa, and Durbin, not in sequence mind you, but all imposing directly upon you, and anything having to do with you, at once.
A mass murderer, innumerable murderers now, no longer subject to capital punishment, can literally reach outside their sanctuary of life imprisonment in their prison cell practically anywhere in this closed and shrunken world,
and terrorize you and yours, terrorizing the world. Even they have the power, and the reach, we all do now; all humans have now.
Ten thousand good people, doing ten thousand different utterly legal things, all unaware of what all the rest are doing, and all unaware of you, can altogether in accidental concert in sum total of what they are each doing utterly legally and unmindfully, now perform--much more immediately and efficiently--a concerted criminal act upon you and yours that destroys your life, destroys all order in your life and probably very many others too in the world at the same time. Primitive Man separated in territory, put as much distance as possible between differences, because of this. More than just primitive Man, all life separates because of this, territorializes because of this, puts as much distance as possible between differences because of this (banishing or exiting because of this, for order).
There are whole peoples that your rendition of peace and order will destroy their lives, and keep on destroying their lives regardless of your
continual patches to the rendition of peace and order, by means of its sheer complexity. Every good thing you do turns out bad for them. Every change you make to what you do to change that outcome, just worsens things for them.
They are expected to take it peacefully and orderly and constantly, or just die and go away. They do, then finally they don't. They are walled-in, all frontier of exodus forbidden them, forbidden all mankind, so their choice is
limited by your iron curtain to only one choice, their options are limited by your iron curtain to only one option. Destroy you, utterly and
completely. Between liberty and death, you've given them the choice of death, and they take it. They choose to take you with them. Your last patch
to your now too complex rendition of keeping peace and order, your last option to better things for them instead of worsening things, was to commit suicide, and you didn't choose to choose that option.
An asteroid passed by the Earth some years ago, the richest composition of which was discovered to be about a trillion and half dollars worth of
precious metals. A trillion and a half dollars. What a capture it would have been, some people thought. Only thing is, without the colonization of space, without colonies in space, the capture would have dropped precious metal worth right through the floor by flooding a closed world's markets with it. It would have bankrupted every holder of precious metals, specifically the
exchange in precious metals between all the world's governments. With colonies in space, though, the capture would have been a universal bonanza, growing those colonies actually, precious metals retaining their precious
value throughout the enlarged, and enlarging, system. We will suffer the
same problem of instantaneous devaluation of the final product below costs to get it, or produce it, or to do a thing, anything, whatever that thing might be, pertaining to any resource from space of any kind, barring the
colonization of space, barring a matching expansion of the system into which
the resource or service is to be input into or used by, that is.
Life must always be in the business of prospering, of getting ahead, just
to survive (just to break even). Colonization is a greater prosperity for a greater number, universally. It fills a vacuum, and it creates countless vacuums behind it, in its wake, to be filled. Only pestilence, war, famine and death--and the destruction of what was that these terrible things accomplish--is frontier colonization's equal for creating mass vacuums. Our government's talk of raising up Afghanistan to economic viability, so to settle it down socially, equals the talk years ago of raising up Haiti to economic viability. We are losing thousands of workers to underimployment and unemployment almost on a per day basis, from world recession, universal recession. Yet we are talking of putting the Afghans to work in all their mass to settle them down socially, just as we did the Haitians. After billions were spent in attempting to make Haiti economically viable, it is where it was before we started, if not worse off. Exactly where did the billions of our tax--and government prodded private--dollars go? WE certainly don't have the money anymore. Haiti doesn't have the money, the Haitians don't have the money, nor any of the infrastructure and industries the money was supposed to seed. Now we've moved on to Afghanistan and the Afghan people with the same plan. There isn't any vacuums for them to fill. No vacuums whatsoever. No frontier colonization. FORBIDDEN! Weapons are forbidden in space. Translation, mankind is forbidden colonization of space and getting loose in space. Things WILL remain perfect for an Aristide and an Osama bin Laden, and a Saddam Hussein and a Mugabe (Zimbabwe), and every other criminal, barbarian, and savage type living. The martial law police state (the space frontier), the concentration camp world inside the police state's iron curtain (Earth), is automatically their natural state, their perfectly natural, perfectly fertile, turf in which to keep on rising from the dead like the phoenix, breeding like flies.
And that is that.
