[pazimzadeh]

Thanks for that explanation. Do you really think the stack is smaller in biology? Biology has been optimized over three billion years - if we've already invented more layers than there are in biology then are we not overthinking it?

This is what I came up with in a hurry for biology:

  ...elements
  atoms
  chemicals
  nucleic acids
  genetic circuitry
  peptides
  proteins
  multiprotein complexes
  microcompartments
  organelles
  cells
  clusters of differentiation
  organs
  organisms
  communities...

Care to fill in or improve the list?