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As for dark energy, although not settled, it's just my personal belief that it will be proven. For instance Einstein showed mathematically that gravity depends not only on mass and energy, but also on pressures exerted. Gravity can be repulsive as well as attractive. The cosmological constant, if it turns out to be correct, exerts an overall repulsive force. Is this correct? Who knows, maybe it's wrong after all...

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This I can live with - that it's a repulsive force generated from gravity. Feels right

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In a nut shell, this is what I gather from reading Brain Greene's "The Fabric Of The Cosmos." He does a good job explaining the physics to the "masses" without invoking the complicated math. Given that these theories involve a lot of complicated math, I think we can appreciate that it's not an easy thing to explain to the general interested public. Many of us simply take it on faith. Either way, it's very interesting reading and I recommend it. Just know that you'll probably have read it about 10 times to fully understand the material as written. I'm only on the 4 th reading

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Sounds like an excellent read, will look it up!

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