Interesting. One way you just made me think of this is considering what a 'great' investment return is. Let's say it's 20%.
If you're getting 20% already, you might as well expand your base looking for more 1000x returns, and not cry too much about bad placements; this investing business has a significant opportunity cost risk which means you probably want to err on the side of putting some money in. If you're over 'great' returns, you can afford to do that, and should.
On the flip side, if you're under 'great' you probably want to figure out how to prune your choices away a bit first.
If you're getting 20% already, you might as well expand your base looking for more 1000x returns, and not cry too much about bad placements; this investing business has a significant opportunity cost risk which means you probably want to err on the side of putting some money in. If you're over 'great' returns, you can afford to do that, and should.
On the flip side, if you're under 'great' you probably want to figure out how to prune your choices away a bit first.