The article discusses Fully Homomorphic Encryption (FHE), a technology that enables computations on encrypted data without decrypting it first. FHE has the potential to provide a private internet, where data can be kept encrypted at all times, but it is still not practical for most applications due to its slow speed. However, FHE algorithms are getting faster, with an 8x improvement in speed every year. This could lead to a future where FHE is fast enough for applications like encrypted cloud computing and confidential blockchain smart contracts.