I’ve had a couple days to digest all the stuff we learned in the Sierra Club
lightweight backpacking class taught by Steve of WildeBeat fame. A few conclusions:

"Either you hike to camp, or you camp to hike." I’m guessing
an engineer coined this phrase because it posits a neatly binary look at backpacking.
If your philosophy is the former, you carry all you can stand because the campout,
not the hike, is the point for getting out there. If it’s the latter, camping
is just something you put up with to keep on hiking, so the less you carry,
the farther you can get out there. But we don’t live on microchips, so we don’t
need to be all either-or about everything. Find a comfortable notch between
these two extremes and you’re apt to enjoy yourself a lot more.

Distance isn’t everything. It seems like the greatest selling point
to lightweight backpacking is how much more ground you can cover comfortably.
Well, you can do a long walk in your living room if you’re determined enough.
Miles do matter, and covering more ground can expose you to things you wouldn’t
have experienced otherwise, but the very act of walking robs you of everything
you can experience only when standing still. It’s not a hike if you’re not moving,
of course, but I feel like the faster I’m walking, the less nature I’m absorbing.

Where you camp is everything. Campsite selection can’t be found
on a shelf at REI or ordered from a cottage manufacturer, so it doesn’t get
as much attention as it deserves. If you go light and camp with a tarp, you
absolutely have to find areas sheltered from the wind and elevated from valley
floors where cold air descends overnight (heavier tents keep you warmer and
block wind better). Developed campsites with their hard-packed ground will require
you to carry a heavy inflatable sleeping pad if you have any hope of getting
a good night’s sleep. The ground of a forest floor or meadow generally is soft
enough that you can sleep on a cheep, lightweight closed-cell pad. This is where
going light gets you closer to nature … in a tarp in tall grass, for instance,
you’re right down there at ground level. Granted, this exposes you to all the
creepy-crawlies living in that ground, but your sleeping bag and ground cloth
will keep them out (mostly). You might love or hate the experience, but you
will not forget it.

Less weight means more options. If your pack weighs seven pounds when
you could get by with one that weighs four, that’s three pounds of other stuff
you can’t take along. Camera gear springs to mind: you could take a tripod along
with the weight saved by switching from a tent to a tarp. Add an extra lens
by subtracting the weight of a ThermaRest and a water filter.

More weight is hazardous to your health. You might think carrying 50
pounds will just make you stronger, but it might also do things to your hips,
knees, feet and back that won’t heal naturally. Heavy loads endanger your balance
on tricky bits of trail and increase death-march factor of steep hills.

There is no discernible difference between 22 pounds and 22.1 pounds.
No need to drive yourself batty trying to reduce your pack weight. If you can
get your base weight down to 15-18 pounds, you’re probably going light enough.