The moment the jumper passed through the light curtain, I opened my channel and opened his own feed subchannel.
There I saw a world slightly different from ours. It was a world filled with sand, looking like a grand desert or something.
The entire world around me was empty. Only storms of sand appeared all over the place. I even saw one huge sand tornado moving away at the horizon.
"Lucky bastard," I muttered when I saw this, "the world you selected is void of danger and enemies."
If I wasn't sure that the portal opened in a random world at a random location, I'd doubt that jumper to know the nature of the world it went to invade before taking these bold steps of his.
Just when I was about to close the channel and start opening another world portal, something new developed in the world the jumper ventured at.