Lys is a lighting system with its own behavior. Instead of switching the light on with one button, Lys consists out of a number of separate lights all with their own control and their own decisions, creating a decentralized lighting system based on emergent behavior.


Lys is a modular lighting system that consists out of two basic elements: rails and lights.


Rails are there to provide power to the lights and give them freedom of movement in one dimension. There can be as many rails in a system as possible for and their length is only restricted by the length of the space they are placed in.


The lights are the main components of the system. Every light is acting as an individual in a bigger system: it is making it own own decisions and can respond to changes in its environment. A light is able to switch itself on or off, move along a rail and communicate to other lights. The lights are also able to respond to the sound in their environment, lighting conditions, they are touch sensitive and can respond to what is communicated by other lights in the system.


By having the opportunity to let the lights respond to their environment, there is the opportunity to give the lights some form of behavior and let the respond differently to certain circumstances. What if light come towards sound and activities and act 'curious'? What if the lights are 'shy' and move away from you? What if lights are active or passive?


But this can be taken a step further, what if the lights are self learning and are able to learn what is appropriate to different situations and becomes aware of what the other lights are doing? Then you will end up with a system that doesn't require and control by users, can be placed in every environment and doesn't require any direct interaction anymore, a light system with group and swarm behavior and behavior that emerges from the sum of the collective and the number of lights in the system.


The system in fact is acting as a decentralized system:


"A decentralized system is one which requires multiple parties to make their own independent decisions"

' In a decentralized system, there is no single centralized authority that makes decisions on behalf of all the parties. Instead each party makes local autonomous decisions towards its individual goals which may possibly conflict with those of other peers. Peers directly interact with each other and share information or service to other peers.'


Rohit Khare


Systems and processes like this can be found in nature, in society, technology and organizations and have certain important features:


- In most cases the individuals of a decentralized system are weak and have limited intelligence, though the system as a whole is very strong and complex. In fact it is very hard to take a decentralized system down, you can take components down, but not the whole system.


- The individuals follow basic rules and have limited intelligence, but the sum of this leads to a complex system and output: complexity beyond the understanding of its creators and emergent behavior.


- Decentralized systems are scalable to any extent and are self adjustable. This in contradiction to centralized system which in general have a limited scalability and become weaker according to its scale.


Though there has been done a lot in the field of decentralize systems, i felt there was a lack of these beautiful systems that were close to people: I tried to bridge that gap with lys.