>The article says that he's now able to walk 6km without problems but doesn't seem to say what happens after that. The device explodes. Seriously, "Can walk 6

>The article says that he's now able to walk 6km without problems but doesn't seem to say what happens after that. The device explodes. Seriously, "Can walk 6km" is an excellent way to concisely yet still quantitatively describe what the man can now do. (Imagine the response if it had instead merely said "He can go for long walks": "But how long is 'long'??!?")