Using the formula as written, anyone aged 40-49 would have a vote weighted at 85%. You’d have to make it to 210 years old to reach 0%.

From an Australian perspective, my proposal is:

• Eligible to vote at 16.
• Compulsory voting at 18.
• A citizen’s vote has a weight of 100% until 20, then drops 5% at each birthday that ends with a 0.

The reason for the diminishing weight of a vote is to correlate with the diminished exposure political decisions will have on the citizen.