According to Cosmo Magazine, we may as well put down our thinking hats and just go back to watching Star Trek, since humanity's two biggest barriers to space travel -- physics and chemistry to be exact -- will make it pretty much impossible to ever go past Mars.
Moore's law tells us that every two years the number of transistors in an integrated circuit doubles. Futurologists assure us that the total volume of humanity's knowledge doubles every five years. Why, then, shouldn't our ability to lift a payload double every five, 10 or even 20 years?
Sadly, the analogy does not apply. In the case of electronics and information systems, we are dealing with soft rules, related to the limits of human ingenuity. In the case of space flight, we are dealing with hard rules, related to the limits of physics and chemistry.
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