With the recent resurgence in interest around airships as more eco-friendly options for hauling and travel (relative to commonplace aerodynes), the safety of hydrogen and availability of helium may still prove to be limiting factors in further development. Moreover, many are postulating that an airship instead using vacuum lift components isn't possible with known materials due to the strength required for the pressure gradient. Will research in materials or engineering overcome the hurdles regarding vacuum lift?

Specifically, this market resolves YES if before 2040 there is an object that can hold an imperfect vacuum and provides active lift in Earth atmosphere when doing so. The lift it provides must be equal to or greater than a conventional airship balloon with an equivalent volume of hydrogen (this point might need further defining, please take to the comments if you have suggestions).

Otherwise, this market resolves NO in 2040.

As I often do, I have put in limit orders to help initial bettors, and might trade more on this market.