A post revisiting the concept of golden powers, which are nearly integers, has been published.
The post explains why golden powers are close to integers using equations involving the golden ratio and the smaller root of x² − x − 1 = 0.
The equations reveal that the integers referred to in relation to golden powers are actually Fibonacci numbers.
The approximation for φn as an integer is nearly the sum of the (n + 1)st and (n − 1)st Fibonacci numbers, with the error decreasing exponentially with alternating signs.