Key TakeawaysAlphabet shares fell sharply Wednesday as investors responded to the Google parent's weaker-than-expected revenue numbers and big AI spending plans. The stock broke out from an ascending channel late last month and picked up momentum ahead of the earnings report before today's abrupt reversal.Investors should watch key support levels on Alphabet's chart around $190,$180, $168, and$160, while also monitoring a key overhead area near $201. Alphabet  (GOOGL, GOOG) shares fell sharply Wednesday a ...