Options that, after understanding the blast radius and sphere of influence, definitely won’t work now, but might work later. The reason you keep them here is that you’ll gain some Insights when other people see them and ask you about them. Putting those seemingly impossible ideas into people’s brains might eventually morph them into “you know what, that’s not such a bad idea!”. Remember, just because you think it won’t work, doesn’t mean it can’t work. At the Commission, we would review our Abandon list monthly and throw out any stale ideas.
The analysis of abandoned options generated some knowledge, and it has value. We wouldn't want to have to repeat the research that led us to that conclusion. On the contrary, we want to build on top of that knowledge. It may have also brought with itself additional Insights that may lead to other Options.