Nobody cares about Microsoft at 10 times earnings, facing disappointing personal computer shipments this year, a leading indicator for desk top computing software.
There's an LED indicator at the top that glows red or green depending on its connection status and a speaker on the back that beeps when you've made a driving faux pas.
Of course, in very strong bull or bear markets, we must rely on technical indicators that can stay with strongly trending markets, as momentum indicators like the Moving Average Convergence Divergence (MACD) indicator or Relative Strength Index (RSI) will top or bottom out well ahead of prices.