Best emojis for theory💭🧠💡

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thought balloon
thinking, idea, imagination, reflection, retro, cloud, dream, hypothesis, what if, imagine, assume, assumption, expectation, consider, theory, supposed, concept
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brain
mind, intelligence, cognitive, thinking, thought, head, knowledge, skill, ability, smart, wisdom, algorithm, logic, reasoning, problem solving, insightful, understand, understanding, belief, sense, realize, realization, memory, remember, behavior, potential, mental, neural, theory
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light bulb
lightbulb, bright, electricity, energy, idea, learning, innovation, inspiration, interesting, know, knowledge, lamp, smart, solution, tip, wisdom, insightful, invention, TIL (Today I Learned), implementation, fyi, approach, answer, inspiring, inspirational, understand, understanding, fact, realize, realization, technique, discovery, eureka, illuminate, useful, helpful, creative, creativity, suggestion, theory, method, reason, concept