Allah tells us that He will bring back His creation on the Day of Resurrection. That is very easy for Him, because He created the heavens and the earth, and creating them is greater than creating mankind, the first time and when He creates them again. The One Who is able to do that is able to do anything that is less than that. As Allah says:

And Allah says here:

hence they do not think about or ponder this proof. Similarly, many of the Arabs recognized that Allah had created the heavens and the earth, but they denied and rejected the idea of the resurrection; they acknowledged something which was greater than that which they denied. Then Allah says:

The blind man who cannot see anything is not the same as the sighted man who can see everything as far as his eyesight reaches - there is a huge difference between them. By the same token, the righteous believers and the immoral disbelievers are not equal.

{Little do you remember!} means, most of the people remember little.

means, it will indeed come to pass.

means, they do not believe in it, and in fact they doubt its existence altogether.