CoinDesk reported:
The current market price of Bitcoin, approximately $29,500, puts the prospect of owning a full bitcoin outside of the reach of most people. However, each bitcoin is subdivisible into one hundred million sub-units called “satoshis,” allowing anyone to exchange fiat-to-bitcoin in smaller amounts. Bitcoin investors refer to investing in smaller increments as “stacking sats.” This, paired with Layer Two (L2) integrations like the Lightning Network, are seen by many as the pathway to increasing Bitcoin use cases and elevating its role as a medium of exchange in commerce.