> qbits have got massively better over the last few decades Progress has been rather slow: 2001: Shor's algorithm was used to factor 15 2012: Shor's algorith

> qbits have got massively better over the last few decades Progress has been rather slow: 2001: Shor's algorithm was used to factor 15 2012: Shor's algorithm was used to factor 21 2019: Shor's algorithm was attempted at factoring 35, but failed due to too much error accumulation