What if this was the era of 4D printing?

MIT professor Skylar Tibbits, has created what he calls a 4D printer, that adds “time” to the dimensions of width, height, and depth.  Through use of “intelligent” materials which adapts to a predefined form as soon as it enters into contact with water. We can imagine this technique being applied not just to water but to air, sound, temperatures or light, for example. The above video shows how a polymer tube plunged into a bassin can change its form. Tibbits as a director of the Self-Assembly Lab works with 3D printing manufacturer Stratasys. What if objects could produce themselves?

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