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A common practice is for a flight attendant to trade places when a pilot needs to leave the cockpit, ensuring at least 2 people in the cockpit at all times.
Granted, a co-pilot determined to crash the plane and kill everyone aboard is probably perfectly willing to kill or incapacitate a flight attendant watching them, but there's at least some chance of the flight attendant winning the fight or managing to unlock the door and better odds of the co-pilot deciding not trying to crash the plane in the first place.
A consumption tax is inherently regressive. Those with smaller incomes must use a larger proportion of it on consumption. The wealthy will spend a comparatively tiny fraction of their income on tax and continue to amass vast piles of money.
I'd prefer to see an approach where the corporate income tax is abolished and replaced by higher capital-gains and dividend taxes on the owners
Oh, I don't doubt we can still read them, I'm only saying it's a fairly tedious effort and some care needs to be taken in storing the cards so they last long enough. With punch cards, a camera or a scanner can be a makeshift "punch card reader."
How will someone 50-100 years in the future read one of today's optical discs without a working compatible drive? Microscopes and a lot of time?
50 years ago digital information was typically stored on punch cards and paper tape. Those might still be readable with great care and tedious effort but would almost certainly be in no condition to be fed into vintage equipment. Someone would probably need to transcribe them optically and run them into some sort of interpreter.
100 years ago there were no computers as we know them today.
Original film from those eras still exists and is readable. While somebody might be able to dig up an ancient optical drive, USB interface and common codec specs in 50-100 years, the film is still film and can be read with good eyes or a magnifying glass. Pressed CDs & DVDs might last that long and probably stand the best chance of working equipment still existing that far into the future, but I wouldn't count on hard drives, flash memory or burnable CDs & DVDs lasting.
You're assuming companies must operate at a fixed profit level and have price setting powers--most do not.
Consider the opposite scenario--if we suddenly lowered corporate taxes to zero. Would corporations pass these savings along to consumers by lowering prices and increasing wages? Perhaps to some degree, but in a non-monopolistic market, prices are dictated more by supply, demand and competitive pressures. Companies may use the extra money to pay down long term debt, invest in property, plant & equipment or pay larger dividends. The interest rate and credit environment will have a large effect on what they decide to do.
The larger driver of wages is competition in the labor market. Companies will pay as little in wages as they are legally able to while still finding suitably skilled employees. Simply having more cash on hand is not an incentive for a company to raise its wages across the board.
Raising taxes on a profitable competitive corporation doesn't directly affect wages, it reduces their profits.