[DaGman]

Actually, the author lost me when he says energy and mass are the same thing immediately after saying E=mc². The formula says that Energy equals mass times the speed of light squared which does not mean energy and mass are the same thing.

I didn't read much of the article after that.

[Hoosier-Daddy]

Not to mention that a massless photon is not going to effect the space around it and it exists without time.

[UnbelievingScumOnTheOtherSide]

Actually, the author lost me when he says energy and mass are the same thing immediately after saying E=mc2. The formula says that Energy equals mass times the speed of light squared which does not mean energy and mass are the same thing. I didn't read much of the article after that.

C^2 is a constant for converting units of measure. Saying that energy and mass are the same does not mean their units of measure are the same. It is like saying 1 dollar = 10 dimes. The dimes are just a smaller unit of measure of money than dollars.

Energy and mass are units for measuring the same thing.

A quantity of energy is measured in joules or newton meters which are defined as the energy required to accelerate one kilogram to one meter per second (kg(m^2/s^2). The energy in one kilogram of matter is approximately 1kg(300,000,000 m/s)^2 = 1kg(90,000,000,000,000,000 cm2/s2) = 9(10^16) joules. Therefore 1 joule of energy is a very small amount of matter (1/9(10^13) g). But energy and matter are the same thing except the former is kinetic and the latter is potential energy. Hope that explains it.