MIT gives its employees a lot of time off; basically from Christmas Eve day until January 2nd. My father visited for Christmas, and we did the usual sorts of things; visiting interesting shops and the like, and eating out a good deal. I went in for a body scan a few days before he arrived, and determined that I'm nearly 20 percent body fat. I had decided to go keto the day after he left, but the realities of Christmas food gifts and leftovers from the sorts of groceries one has when guests are around, combined with my desire to not waste food, have forced me to put it off a few days. I've received a new blood ketone meter, and I intend to start the New Year by going keto (and alcohol free) until I get my body fat percentage down to a more acceptable number.
Another thing the scan turned up is that I'm rather more dehydrated than I used to be. I've been intending to make some improvements to my life statistic tracking spreadsheet, and the last few days have seen a lot of progress along those lines. I'm going to include tracking water intake, disregarding the water in food and any beverages other than just water.
My running distances continue to improve. This week, I'll (cumulatively) exceed a marathon, for the first time in far too long. My interest in fastpacking continues to grow, but I fear the weather is turning too cold to overnight anywhere for a while. The array of ultralight gear out there is amazing, but the thrifty person within me seems to gravitate towards some of the more fringe options; soda can stoves, for example, and tyvek tents. In any event, I have ordered a few bits and bobs which, coupled with some things I already have, will allow me to put together a very lightweight survival kit, and a decent lightweight first aid kit. I've got a few ideas for some things I could sew, but perhaps the most interesting is a custom running backpack. I'm also interested in the possibility of integrating a sleeping pad, quilt, and shelter into a single piece in order to minimize weight; of course, that would be a very advanced bit of sewing, heat sealing, and design. Even without that, I think I can get a complete fastpacking setup assembled that weighs under 5 kg (not counting food and water).
I've thought a fair deal about the diet I would use. Keto or other fat-heavy options would obviously optimize my calories per weight carried. If I were to use something like keto chow (and possibly powdered MCT oil), it would also obviate any concern with cooking. But I do so love a nice hot cup of coffee in the morning, even instant. There's also the solo helix coffee filter holder; it's the exact sort of gadget that appeals to me. Simple, inexpensive, and clever.
Anyway, I'm sure I've forgotten something I wanted to include.