In its original form, an expanding Einstein model had an attractive, economic elegance. Alas it has since run into serious difficulties which have been cured only by sticking on some ugly bandages: “Inflation” to cover horizon and flatness problems; overwhelming amounts of “Dark Matter” to provide internal structure; and “Dark Energy”, whatever that might be, to explain the apparently recent acceleration. A sceptic is entitled to feel that a negative Significance, after so much time, effort and trimming, is nothing more than would expect of a folk-tale constantly re-edited to fit inconvenient new observations.
— Michael J. Disney, a veteran astrophysicist at Cardiff University
Must read:
https://www.intechopen.com/books/aspects-of-today-s-cosmology/doubts-about-big-bang-cosmology