When Shen Yue saw the rocking car appear beside him in the laboratory, he actually found it a bit amusing.
This isn't scientific.
The time machine made by Nuanyu was starkly different from those depicted in films and television; those seek to dazzle the eye, but Nuanyu's looked more like a child's toy. Yet, could it be that something resembling a child's toy had instantaneously transported him to the Ma Zu Cave from eight hundred years ago?
Perhaps, under the extension of the Five Aggregates, humans have always believed that overly large and flashy objects are the direction of human development, yet they never understand the unique mysteries of space.
"One flower, one world; one leaf, one Tathagata" has been chanted by the world for too long, but how many really know the spatial mysteries hidden within?
A real time machine must break away from the established concept of time; a true vessel traversing the universe should not emphasize an appearance that is only skin-deep.