Some restructuring on business ownership and building activity
not 100% sure but it’s worth a shot
Yes, because one system would have to much power and be able to have full control and do whatever they want. This would lead to corruption and tyranny.
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.