Just to play devils advocate.I'm sitting at my computer and I have three knives in my pocket, a mini SAK, a single blade lockback and a multitool. They are always there.
Yesterday, and on my planned hike, I'm never more than a mile from people. The C&O canal National Park is a narrow well traveled park with campgrounds and water every 5 to 7 miles and residents along the edge. I will have 1-3 days of food in my pack as well as a FAK and shelter. I don't see it becoming a survival situation and even if it did, a fixed blade knife still won't be necessary.
Your planned trip becomes TEOTWAWKI trip that you did not plan.
If all that you left behind was that blade,I am sorry.
btw,you travel w/o a firearm ?.
26 years a cop,I am not that trusting of ANY scenario.