Numbers part 2: Powers of ten and one

xkcd is a webcomic I tend to check 3 times a week. Sometimes I laugh my head off. Sometimes other people find it funny too...but sometimes the geek humour is a little too obscure.

Here is an example of one of said comic episodes...

Do you find it funny?

Here is what the comic is subtly emulating...

...this film was made in 1977 and is called "powers of ten".

Now do you find it funny?