Why the claim that c# people don't get object-oriented programming? (vs class-oriented)

Question

This caught my attention last night.

On the latest ALT.NET Podcast Scott Bellware discusses how as opposed to Ruby, languages like c#, java et al. are not truly object o

Answer 1

Update: Its the new wave.. which suggest everything that we've been doing till now is passe.. Seems to be propping up quite a bit in podcasts and books.. Maybe this is what you heard.

Till now we've been concerned with static classes and not unleashed the power of object oriented development. We've been doing 'class based dev.' Classes are fixed/static templates to create objects. All objects of a class are created equal.

e.g. Just to illustrate what I've been babbling about... let me borrow a Ruby code snippet from PragProg screencast I just had the privilege of watching. 'Prototype based development' blurs the line between objects and classes.. there is no difference.

animal = Object.new                  # create a new instance of base Object

def animal.number_of_feet=(feet)     # adding new methods to an Object instance. What?
  @number_of_feet = feet
end
def animal.number_of_feet
  @number_of_feet
end

cat = animal.clone          #inherits 'number_of_feet' behavior from animal
cat.number_of_feet = 4

felix = cat.clone           #inherits state of '4' and behavior from cat
puts felix.number_of_feet   # outputs 4

The idea being its a more powerful way to inherit state and behavior than traditional class based inheritance. It gives you more flexibility and control in certain "special" scenarios (that I've yet to fathom). This allows things like Mix-ins (re using behavior without class inheritance)..

By challenging the basic primitives of how we think about problems, 'true OOP' is like 'the Matrix' in a way... You keep going WTF in a loop. Like this one.. where the base class of Container can be either an Array or a Hash based on which side of 0.5 the random number generated is.

class Container < (rand < 0.5 ? Array : Hash)
end

Ruby, javascript and the new brigade seem to be the ones pioneering this. I'm still out on this one... reading up and trying to make sense of this new phenomenon. Seems to be powerful.. too powerful.. Useful? I need my eyes opened a bit more. Interesting times.. these.