Permissive licenses permit a broader range of use compared to “copyleft” licenses.
“copyleft” here just being a cute way of being the opposite of copyright - instead of disallowing others from what they can do with “copyrighted” code, “copyleft” requires that they (upon request) share modifications to your code.
Permissive takes away this requirement to share your modifications. “copyleft” is considered more free and open source (FOSS), permissive is more business friendly.
Okay everyone calm down. We can’t see the other side. Everyone knows that you tie one side at the top of the wheel and the other at the bottom of the wheel. When driving, the two wheels rotate at the same speed and keep the line taut.
(please don’t ever do this)