<s>
The	O
term	O
cosmic	B-General_Concept
variance	I-General_Concept
is	O
the	O
statistical	O
uncertainty	O
inherent	O
in	O
observations	O
of	O
the	O
universe	O
at	O
extreme	O
distances	O
.	O
</s>
<s>
The	O
observable	O
universe	O
viewed	O
from	O
another	O
galaxy	B-Application
will	O
have	O
the	O
peaks	O
in	O
slightly	O
different	O
places	O
,	O
while	O
remaining	O
consistent	O
with	O
the	O
same	O
physical	O
laws	O
,	O
inflation	O
,	O
etc	O
.	O
</s>
<s>
The	O
standard	O
Big	B-Application
Bang	I-Application
model	O
is	O
usually	O
supplemented	O
with	O
cosmic	O
inflation	O
.	O
</s>
<s>
Some	O
of	O
these	O
processes	O
are	O
random	O
:	O
for	O
example	O
,	O
the	O
distribution	O
of	O
galaxies	B-Application
throughout	O
the	O
universe	O
can	O
only	O
be	O
described	O
statistically	O
and	O
cannot	O
be	O
derived	O
from	O
first	O
principles	O
.	O
</s>
<s>
This	O
variance	O
is	O
called	O
the	O
cosmic	B-General_Concept
variance	I-General_Concept
and	O
is	O
separate	O
from	O
other	O
sources	O
of	O
experimental	O
error	O
:	O
a	O
very	O
accurate	O
measurement	O
of	O
only	O
one	O
value	O
drawn	O
from	O
a	O
distribution	O
still	O
leaves	O
considerable	O
uncertainty	O
about	O
the	O
underlying	O
model	O
.	O
</s>
