As I'm getting familiar with English grammar, I'm facing a few doubts. The word more is a comparative form of much (for non-countable nouns) and many (with countable nouns). However, I can use more with sentences which don't have comparisons. e.g.,
As business grows more complex, I'm unable to handle it.
How would you explain this usage of more. Can this work as an adjective as well without having comparisons? Or the usage of than is implied. e.g.
As business grows more complex [than did in past], I'm unable to handle it.