Where part of the problem lies is that energy itself is made up of particles, which some may classify as "material". This is why a laser, which shoots out photons, a form of energy, can be used to cut objects.
Photons are energy, not matter.
It's confirmed: Matter is merely vacuum fluctuations
Matter is built on flaky foundations.
Physicists have now confirmed that the apparently substantial stuff is actually no more than fluctuations in the quantum vacuum.
The researchers simulated the frantic activity that goes on inside protons and neutrons.
These particles provide almost all the mass of ordinary matter.
Each proton (or neutron) is made of three quarks - but the individual masses of these quarks only add up to about 1% of the proton's mass. So what accounts for the rest of it?
Theory says it is created by the force that binds quarks together, called the strong nuclear force. In quantum terms, the strong force is carried by a field of virtual particles called gluons, randomly popping into existence and disappearing again. The energy of these vacuum fluctuations has to be included in the total mass of the proton and neutron.,,,,
,,,,The Higgs field is also thought to make a small contribution, giving mass to individual quarks as well as to electrons and some other particles. The Higgs field creates mass out of the quantum vacuum too, in the form of virtual
Higgs bosons.
So if the LHC confirms that the Higgs exists, it will mean all reality is virtual.
It's confirmed: Matter is merely vacuum fluctuations - physics-math - 20 November 2008 - New Scientist