As the title suggests, the idea is giving us the option to convert any spare quanta we have to talent points. This helps new players catch up with old ones, and adds a new way to earn talent points that isn't waiting or earning insignificant points from achievements. Also encourages more logins and playtime to earn quanta for talents so players could then reinvest those talents into making more quanta.
It could be either a static conversion cost or an exponential curve: Static would have the up and downside of old players easily getting points from their wealth of quanta compared to newer ones, however that's already solved with talents increasing 5 times in cost with each tier, and new players can always resort to waiting for a short while, earn some quanta and easily reinvest in things they need at low tiers. Exponential curve is so that it becomes more expensive the more points a player already has. Like it could start at 10 quanta = 1 talent point up to 1 million talent points, then 100:1 at 10 million, 1000:1 at 100 million, etc. However people with alt accounts might benefit from trading quanta across accounts to easily level talents but it helps and favors new players more than static.
Of course numbers can be changed and balanced, but they should be set high at the start and later decrease as needed so no full talent wipe is needed in the future. Even if they're always set high, its great to have options.