I read the following line in the research paper - The dynamics and regulators of cell fate decisions are revealed by pseudotemporal ordering of single cells:

During differentiation, for example, each cell makes independent fate decisions by integrating a wide array of signals from other cells and executing a complex choreography of gene-regulatory changes. Thus individual cells can execute the same sequence of transcriptional changes over highly varying time scales.

Can anyone explain in simple terms what is meant by "same sequence of transcriptional changes"?

How can it be the same sequence if during differentiation, different types of cells are formed?