My ideas

[Zhibek]

From internet:"For instance, the combustion of butane (above) releases energy because there is a net shift of electron density away from carbon and hydrogen and onto oxygen. When an atom gains an electron, energy is usually released."
So if an atom gains an electron, energy is usually released, electron gives energy to an atom

Electrons transfer through covalent or ionic bonds ,electron gives energy to atom, electrons can be the cause of law of conservation of energy because electrons transfer energy through covalent or ionic bonds. Electrons can make energy field, people can make hyperdrive applying energy of electrons and people can make hyperdrive applying energy field based on electrons.

 

[Zhibek]

"Think of dark energy as the "evil counterpart" to gravity–an "anti-gravity" force providing a negative pressure that fills the universe and stretches the very fabric of spacetime. As it does so dark energy drives cosmic objects apart at an increasingly rapid rate rather than drawing them together as gravity does.
Right now, dark energy is just the name that astronomers gave to the mysterious "something" that is causing the universe to expand at an accelerated rate.

Dark energy has been described by some as having the effect of a negative pressure that is pushing space outward.
the electromagnetic force is the fundamental building block for the spring force, but the spring force itself is a macroscopic manifestation of the interactions between atoms and molecules, governed by Hooke's Law.
When a metal spring is stretched or compressed, it is displaced from its equilibrium position. As a result, it experiences a restoring force that tends to retract the spring back to its original position. This force is called the spring force. It is a contact force that can be found in elastic materials."
spring force is dark energy, spring force is negative pressure that is pushing space outward. When metal spring is compressed, it experiences spring force that tends to retract the spring back to its original position. The spring force in compression is like negative pressure that is pushing space outward.
If electromagnetic force is the fundamental building block for the spring force, electromagnetic force is fundamental building block for dark energy. Dark energy can be made from electromagnetic force.

 

[billslugg]

Dark Energy was explained recently as simple time dilation effects in the Timescape model.. There is no need for a previously unknown repulsive force.

Dark Energy May Be an Illusion: Scientists Uncover a “Lumpy” Universe

Scientists are challenging the existence of dark energy with a new model called "timescape," which suggests the Universe's expansion might be influenced by its uneven structure rather than an invisible force. This theory could resolve ongoing cosmological debates, with upcoming satellite data pla

scitechdaily.com