I'm currently in year 12 in Australia and wishing to go into a BSc course next year. While looking at my options I discovered a 'Bachelor of Science (Science Scholar Program)' and 'Bachelor of Science Advanced with Honours' being offered at Monash and I am achieving good results(mostly A's). So...
If the universe was closed and such that if one continued in a straight line they would arrive where they began eventually. Wouldn't the twins paradox still be a paradox as neither party is accelerating (are they?) and this would prove that such a universe doesn't exist?