[xandrius]

Always decide to walk, especially for just 10 minutes. Good for health, mental wellbeing and it's just easy.

If the question was 1h+ then maybe the answer would be different.

[JohnKemeny]

It's a computational problem, I thought (mistakenly) that the HN crowd would understand.

[speed_spread]

Your explanation was too good, people go straight for the answer to your example. There might be a bit of cheekiness too!