Will there ever again be a band as big as the Beatles or the Stones?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts • Last week’s replies: why is a child saying ‘Na-na, na-na-na! ’ so annoying?

The 2020s have seen many individual pop artists make it big: Taylor Swift, Ed Sheeran, Sabrina Carpenter, Harry Styles. But the charts are not full of bands the way they used to be. Is the era of the all-conquering group that puts its stamp on popular culture (Abba, the…