But this earth and all the life in it is ultimately just a short blip in the long time line of this universe, which will eventually burn itself out and slowly disintegrate into cold lifeless radiation.
Yep.
From the materialistic point of view, all life is just part of the continuum of matter in this universe with no ultimate purpose, aim or meaning.
Well, not quite. From the cosmic point of view, the materialist accepts that life is a part of the continuum of matter and energy in this universe with no ultimate purpose or meaning. From the point of view of the materialist, though, you can implement whatever personal purpose you choose. As a species, we have the choice what legacy we will leave, even if we have no idea if anything will ever come along that can appreciate it.
What does it matter if everything is just determined by events driven by scientific laws with nothing in control?
Well, it has implications for things like the justification for a penal judicial system, for instance, but more immediately people who incorrectly think that there is a God are killing people and restricting their lives based on that misconception.
But what if there is control and awareness coming from something outside the limited materialistic nature of our universe?
Then it's doing a piss-poor job of communicating what it's expectations are, which suggests that the 'control' isn't that absolute. If the control isn't absolute, how can be sure that the rules it allegedly imparted - presuming that one of the accounts of what those rules are that we still have is actually the right set - are still relevant?
O.