Observing today's social climate, you must understand that the current model states a spherical earth. While science at its core is intended to be nullified and evolve, it seems that the flat earth guess comes with a bit of devolution (if confused, see Aristotle). With no scientific backing to nullify the current null hypothesis, you as the scientist still carry the burden to disprove that the earth is not round and validate your alternate hypothesis, in this case, "The world is flat."
What, if anything, could convince you that the science, replicated and verified internationally for thousands of years, is actually on to something? Could you be convinced that the world isn't flat? What causes you to believe that the world is flat?
(*Science is a process that tests an alternate hypothesis through experimentation and peer-review while it refutes the opposing, accepted views(aka. null hypothesis); Science is not a word synonymous with guess-work or religiosity. Let us keep this in mind as we discuss and debate.)