[Psalm 73]

"So they blew this one as well as their last long-range missile launch?"

But they have learned much through both of these failures - they will get better at it as the months/years go by.

[monday]

"But they have learned much through both of these failures - they will get better at it as the months/years go by."

Yeah, I expect they have learned that they have neither the money or technical expertise to compete with the US in a nuclear arms race. It's likely that these tests are all NK has funds for. Nuclear weapons are expensive, especially if you want them to work.