<< Chemistry is in many ways temperature dependent.
I suggest life is too. It's a reaction to a heat cycle
in a very narrow range of temperature.
And later it evolves the ability to adapt to that temp
cycle (and later it even evolves the
ability to escape the grip of that environment  a bit)

But the basics are important. And this quote from
Biochemistry from Matthews and van Hold bring it home
to me:

"A universe of hydrogen and helium has no chemistry.
Nor is chemistry possible in the heat of stars, 
where all compounds are broken into their elements.
In environments as cold as the moon or space, a slow
simple chemistry may occur, but we cannot envision
the formation of molecules as complex as proteins or
nucleic acids. Only in the temperate environment
of an appropriate planet, enriched with elements
capable of forming complicated compounds
can life arise." 
 >>


TH (later)

Let's go one step further.
If we have the basic environment forant in biology and
Z**

"What makes noncovalent interactions so important in biology and
biochemistry?... Biologically important noncovalent bonds are 10 to100 times
weaker (than covalent bonds). It is their very weakness that makes noncovalent
bonds so essential, for it allows them to be continually broken and re-formed
in they dynamic molecular interplay that is life."  Mathews, van Holde.

So for life to begin we need the correct temperature environment. Then we need
some process by which noncovalent bonds are continually broken and re-formed.

Does anyone disagree?
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