Yes, I'm arrogant and I'll deal with an idealized model where the same set of resources is transformed into final goods, but bear with me.
In order to get a real growth of 4% be it per year or per century in such a scenario, you need to find a better use of resources so that with the same resources you may produce an output which is 4% greater than before.
Which is the same as saying the the only way to grow is to find ways to produce final goods cheaper.
And because production is cheaper, more goods could be sold but.. entrepreneurs will still make a profit. Pretty much the same.
And the fact that final goods get cheaper means just that.. That goods get cheaper.
And you will not get rich by just holding bitcoins, or any other fixed supply money. Yes, you will be able to get more stuff for but only because the stuff get cheaper..
You'll still hold the same fraction of total purchasing power that as the day you decided to "hoard" your money for a while.
That's not what I call getting rich, and that's why loans and interest make sense and are safe with bitcoin.
P.S. Take you time. It's late in my TZ.