I think we'll see a lot more internet and then a super-internet along with new technologies like holographic televisions, flying cars, etc becoming mainstream. What about you?
Which chemicals ? There are lots of different extinguisher types and they last for many years. 2. You'd be very stupid to attempt to put out any fire with a flammable powder, you could get an explosion.
It depends on the location. If you are in a computer server room or other electronic storage room, you would want to use something like CO2. Put out the fire and save the equipment. If in a chemical storage area, you want powder to also smother the fire. The question is how critical is the stuff in the room and what type of fire.
