It's pretty straightforward. The demand for chips increased much faster than the manufacturers could increase capacity and meet demand. The COVID shift in work

It's pretty straightforward. The demand for chips increased much faster than the manufacturers could increase capacity and meet demand. The COVID shift in working, socializing and learning from in-person to digital drove a huge demand spike for computers and telecommunications gear. The chip fabs hit capacity and it takes a long time to increase capacity. The equipment companies are running flat out to ship additional equipment, but so far, the fabs haven't gotten back to equilibrium.