1 Satoshi is currently worth $0.000069, and transactions are being approved for as low as 2¢. So this isn't currently a big problem.
In the future, bitcoin could be extended to have more digits. Or perhaps this will be dealt with on a second layer. Lightning transactions could deal with sub-satoshi quantities.
In the future, bitcoin could be extended to have more digits. Or perhaps this will be dealt with on a second layer. Lightning transactions could deal with sub-satoshi quantities.