I want to measure the circumference of the Earth by looking out of my bedroom window without having to ask for anyones help.

As much as I have tried, I cannot realise the circumference without first measuring a distance. Please tell me if this is not the case somehow.

If it is not possible to know the explicit measured circumference, but I can know values such as orbital angles, I find that the reality of the circumference is in a superposition relative to myself, it has no actual meaning to me.

Without having used science to make measurements, I do not exist in a classical reality, I exist in a quantum one. How can I quantify how relativity applies to me without having derived any numbers (e.g. too busy playing computer games). Clearly it does apply, but the quantities are not measured.

If I do not exist in a classical reality because I never measured anything, I do not have to accept that knowing everything about the system around me results in a deterministic outcome, I can have confidence that a predetermined outcome does not apply. Potentially deterministic outcomes are decided by my decision to make measurements.

From my attempt to measure the circumference of the Earth from my bedroom I have concluded that Classical Physics is the result of Science (measurements) and not a fundamental truth about reality. I have determined that the outcome that becomes fixed via measurement is the result of my decision to make a measurement and from this I determine that I have free will.