The Bitcoin reward isn't just cut in half; in mathematical terms, this halving is like a right shift operation in binary, effectively reducing the block reward by half every 210,000 blocks.
3.125 has a 2-fold significance:
1. Bitcoin monetary policy puts BTC’s annual inflation (via mining) lower than gold’s annual inflation (via mining). This makes Bitcoin harder money than gold; makes Bitcoin even more of a sound money than gold.
2. Bitcoin issuance halving happened April 19, 2024:
“The most recent bitcoin halving took place on April 19, 2024. At the time, the reward for each block of mined bitcoin was cut in half from 6.25 BTC to 3.125 BTC. This event occurs approximately every four years, or more precisely, every 210,000 blocks.”
https://www.forbes.com/advisor/investing/cryptocurrency/bitcoin-halving-2024/
Discussion
You are technically correct. This is why I use the “common tongue” so regular people will understand.