Expression for value of sum of density parameters today

Expression for sum of density parameters

Proportionality of sum of density parameters to time if:
- Radiation dom.
- Matter dom.

What is the flatness problem?

What is the horizon problem?

What is the relic abundance problem?

What is inflation?

What is the pressure of a substance causing inflation?

Simplest scale factor evolution with time during inflation

How does inflation solve the flatness problem?

How does inflation solve the horizon problem?

How does inflation solve the relic abundance problem?
What does this put a limit on?

How is inflation quantified?
How much is needed to solve flatness problem?

What might drive inflation?

How could we detect scalar fields?