In 2050, we establish contact with remote planet Qasniuq. Qasniuqians are highly intelligent beings and have different extra sensory capabilities. The planet has variety of precious mineral wealth and a different atmospheric composition.

Remote planet Qasniuq

We then wish to trade goods with them. Qasniuqians though, are highly sceptical of our currencies and our banks (rightly so). Trading with elements like Gold, Silver is a problem because these are available in abundance on that planet and have no value for them. Also manufactured items available there have socially no value here. We come up with an ingenious way to exchange goods. We trade one Human with one Qasniuqian.

Trading between Earth and planet Qasniuq by exchanging our intelligent beings with theirs

Once we have enough Qasniuqians , we goto their plant and trade Qasniuqians for minerals of same value and bring them back. The reason this works is that an adult human is actually a measure of time. Since, we don’t have anyway to speed up biological processes. We are sure that a Human worth 50 years can be exchanged with a 50 years old Qasniuqian. In essence, we are basically trading time.