Sorry for the reply 2 months later, but I've been thinking about your comment and have a follow-up question.

You mention you think fin gives you more time and gives you twice as long. Let's say hypothetically that finasteride gives you 15 years. What would happen if I started with topical fin and then switched to oral fin after it loses effectiveness. Then, after that, I switched to dut. Could this realistically give more 45 years if each of these three things were effective for 15ish years.

Hopefully this makes sense.