Conclusively disproven

Some see incidents like these as tragic. I tend to view them as Darwinian comedy:

They saw the world as a warm, welcoming place where strangers would commit random acts of kindness every day.

“You get a feeling of wanting to give back, not just to this person who has welcomed a stranger into their home, but to the wider world,” Mr Austin wrote on his blog. “You become someone who wants to welcome others into your home. You become a merchant in the gift economy. You’re led to believe that the world is a big, scary place. ‘People,’ the narrative goes, ‘are not to be trusted. People are bad. People are evil.’ I don’t buy it.”

The thing is, the world simply doesn’t care what you believe.

They were travelling along the Pamir Highway, a Soviet-era road that stretches across 2000km near the border with Afghanistan and has spectacular views, when a carload of men who are believed to have recorded a video pledging allegiance to the Islamic State group spotted them. They sped towards the group of tourists, rammed them, jumped out and attacked the cyclists with knives. The horrendous slaying was captured on grainy footage from the attackers — who also took the lives of one Dutch and one Swiss national.

I really fail to see why ignoring human nature is considered any less stupid than ignoring gravity or physics.