You can also slow it down with a cool, dry breeze, which is what the Japanese researchers did.

The train slackened speed as we approached the station.

I suggest easing into interval training if you haven' t done much of it before - just pick up the pace for a minute, then go slower for another minute.

Of course,maybe there will be friction and things like that which will slow it down but this force field is not responsible for it.

It slows down the next programmer in the code, as they have to think instead of just flowing through the conditional, if that makes sense.