Prototype materials hard to source.
I consider the materials I need to construct my prototype *essential items* for us, as a species. They have been difficult to source. That's an inconvenience for me, of course, but it speaks to a different problem. We've gone astray. People can go out in this world and buy seemingly endless amounts of junk and crap. But when it comes to more basic things that will actually help them improve their lives, the shelves are bare.
I guess one of my goals is to improve access to the exact thing I am building but it's a tall order. This world frustrates me to no end. I guess I have no choice but to carry on. Unwilling to wait for this place to improve, I will live as though the day is already here.