The world doesn't actually change rapidly at all.
What should our political system be?
I'll await your response to the rest of my question also, as you are just spouting nonsense and not actually backing it up with anything. Everyone can say "we need change" but until you outline what that change is and how it's achieved then it means nothing.
System of Government
Two houses of parliament, both elected.
Lower House (call them LHMPs) - Some form of population based representation per county, no more than 3 though.
Upper House (UHMPs) - 1 per county
Parliamentary Elections every 4 years
Every 4 alternate years (so 2 years into the parliamentary election) an election for the "prime minister". PM must be a current UHMP. (if the person gets voted out after 2 years then another election is held and the winner gets to serve until the end of the previous term - so just 2 years)
Winner forms a government, all senior ministers (ie heads of department) have to be from the Upper House.
All other junior ministerial staff have to be from the Lower House.
Elections
Upper House elections are done so that the winner of the popular vote in the county gets the seat.
Lower House elections are done so that the top
x people are given the seat.
Prime Minister is elected entirely on the popular vote, has to have at least 50% of the vote
OR lead his closet rival by at least 10%.
Eligible candidates
All have to be UK nationals, domiciled in UK
For the lower house the candidate must have lived (main residence) in the county for at least the previous 3 years - and must remain so throughout their term.
For upper house the candidate must live (main residence) in the country post election.
Minimum of a Bachelors degree for both houses.
Laws
Law has to be passed by approval of both houses
In order to pass the law to get at least 60% of the active vote (active = people who have bothered to vote that day) in both houses.
How is that for a start?
I'll write more when/if I have time, need to finish my dissertation right now.