You can’t die from marijuana consumption alone. It’s worth being repeated; no matter how much you consume, regardless of how fast and through what method of inhalation or ingestion, you can’t die from marijuana consumption. It’s non-lethal.
This is an anomaly among substances that we as humans can consume. Everything else has a fatal dose, even water. Water, for example, has an easily detectable LD-50; the amount at which consumption will kill half of those who consume that particular amount.
Scientists have yet to discover – and in all reality never will – the LD-50 for marijuana. This infuriates prohibitionists.