Answers

Yesterday's orange symbol means "binary" It is a combination of a zero and a one. It is used everywhere to denote on/off for electrical power.

Yesterday's green symbol refers to recycling. It is the symbol used to denote the correct place to put your waste if you want it to be recycled.

Yesterday's red symbol, a combination of the other two, suggests electrical power derived from stuff you might otherwise regard as garbage.

Today I am feeling very much banana-skinned. Just about everything that could have been thrown in my path to prevent progress has been. It's just another challenge. Another hoop. I'll get there.