I believe that every single attempt at change in anything, whether it's political systems, forms of art, architectural style, or something as trivial as gaming, is a good thing in itself. By attempting to change things, we will know whether the change is for the better, or for the worse. If it's for the worse, we change it back, realize not to try that particular change again, and move on. If it's for the better, we keep it, realize that maybe it's a path worth expanding on, and move on.
Not necessarily true. We must temper our actions with wisdom, otherwise remain perpetually the fools who simply try every dumb or risky idea, hoping we can do damage control after the fact or simply "change it back" as you say, which I am sorry to point out is no longer a certainty, by a long shot.
Moore's Law dictates we will reach a critical mass or terminal velocity in our technological development, a point I would argue we passed decades ago, where the means at our disposal no longer allow us the luxury of being such blind and short sighted children about our pursuit of "change."
For example, we might just decide to try out a new techno virus or zombie wireless human network, and infect anyone against their will, by that same logic that if something goes wrong we'll simply stop and learn not to, and be able to undo the damage.
Except we discover the genetic changes we introduced are in fact irreparable, and for the sake of some fad of the moment Borgian hive mind virtual reality orgy, we have destroyed the greater potential of humanity forever.
I will never agree with science or change simply for the sake of it. How irresponsibly idiotic can we possibly be, after thousands of years of evolution... You'd think we'd know better. Yet it seems every generation all common sense has to be learned all over again, and we don't appear to get any better at it. On the contrary...
We need to make INFORMED, intelligent decisions, not go around testing out every dumb idea without restraint. The assumption we'll be able to simply clean up after the sort of technological mistakes we can make today is the assumption of a fool who has no right to make those decisions for the rest of us.
Not that this stops them from simply buying a position of authority... Like the presidency. Today we worship presentation over substance. You don't need to be qualified, you just need money and some lessons delivering canned lies people want to hear in a suit.
Real science takes time. It seems, as Beverly Crusher of TNG once said, the "scientist" brats of today's zombie generation simply want to take shortcuts "right through living tissue," just to see what happens.
Such petty irreverent and nihilistic minds are like a cancer lingering from the last dark age, the atheist pissing contest, the tyrant looking down at everyone else to justify their criminally insane actions, and will be the cause of the next, I am certain of it.
Show some personal responsibility, I say.
Of course we should continue to make changes, but we cannot allow ourselves to start shortcutting what works, let alone what is necessary, just to see what happens.
Nothing personal of course, and this is more appropriately in regard to political or scientific change as you originally pointed out, not necessarily changes in a video game.
Changes to a virtual world doesn't put the lives and future of real people at risk.
My point is that even though everyone is on some level, some more than others, afraid of change, things are going to change nonetheless, and we must accept this.
We do have some control over the kinds of change we must simply accept. I think humans have suffered as slaves for so long we are almost too timid to demand the use of better tools we have today to solve archaic problems we still subject ourselves to.
We tend still to lump too many things automatically into the category of "things we cannot change."
There is a point, where the level of technology existing to provide better alternatives changes such outdated cliche from wisdom to stupid self defeat. I think we've already tripped and bumbled head first over that line.