>>Dragan suggested that we define an observer class along side the particle class.
>
>I only assumed there should be an observer class. Particle class is yours.


Guess I'm not sure how you'd get around it and still account for matter and forces particles (mesons and bosons in the Standard Model).

Got an idea?



>>So if the particle has the observe method, how does a human being like myself observe?
>
>

procedure observe()
>oObservation=create("empty")
>for each oParticle in this.collParticles
>   oParticle.observe()
>  addProperty(oObservation, oParticle.cPropName, oParticle.uPropValue)
>endfor
>return oObservation

>
>In the universe where observer is also a particle, particle would be a collection. In the other one, particle can be anything, but observer is a collection (or something more complex), or has a collection of its own particles.


I take it the above method belongs to an Observer class?

If so, how does the collection of particles get on the observer class?

It seems to me that if the observer already knows about the particles it is observing, than it has already observed them.