AeternaFi transforms idle stablecoin liquidity into a "Money Market Fund 2.0" using a dual-token model (AetUSD and sAetUSD). While AetUSD provides 1:1 transactional utility, sAetUSD acts as a yield-bearing token that accumulates value from a diversified basket of low-risk sources, including tokenized US Treasuries, deposit tokens, other RWA tokens, and crypto hedged with derivatives. By modernizing the fund structure onchain, AeternaFi aims to deliver the transparency, liquidity, and 24/7 availability required by modern corporate treasuries and financial institutions seeking to optimize idle cash.