Touring on a fixed

If you're touring in the Alps why the fuck would you do it fixed?
Possibly the best ever times I have had a on a bike were the downhill parts in the alps, if my touring bike had been fixed it would've been a nightmare. I cannot conceive a single thing good about cycle touring the alps on a fixed touring bike.

Of course that's just me.

Well I'm not touring all the alps, just a few of the less challenging parts, i also find riding a freewheel no where near as fun as a fixed and would have no use for one other than this one ride. Then there would be the sense of satisfaction after doing the alps fixed.

Because it's hugely enjoyable.

The descent not so.

How?

Could run a couple of cogs on the rear to alternate if it looked like any of the descents would be seriously challenging.