So what do you think of that:
The concept of flexible electronics, which includes rigid-flex PCBs, dates back to ancient times. In the 4th century BC, the ancient Greeks discovered a naturally occurring flexible material called “lyrachne,” which was a combination of plant fibers and tree sap. They used it to create flexible scrolls for writing. Fast forward to modern times, and we’ve translated that ancient flexibility concept into advanced technology with rigid-flex PCBs, allowing us to bend and shape electronic circuits for various applications!