No because if you apply that logic then the oft quoted advice by our resident medic of 'take two ibruprofen and call me in the morning' could be interpreted as 'take the packet and you'll be okay in a nano second'.
However as I suspect you've posted this tongue in cheek I did have a chuckle at the thought of everyone getting immortality by walking non stop for a week or so.
What it means is that if you walk 5 miles per day for 10 days, you'll be 50 miles away from where you started:-) And, of course, you will wear your hips out much earlier than had you not done all that walking.
Also dont forget before you criticize someone, you should try walking a mile in their shoes. That way you will end up a mile away from them and you will have their shoes.
I bought a fitness monitor to check how much walking I was doing. I have managed to walk about 5,000 steps a day. Some of those days I have not left the flat. The monitor is around my wrist and it is monitoring my arm movement. Not a lot of use.
The details of my sleep patterns and cycles show just how badly I am sleeping. :-(