That’s a very bad thesis to trade options on. The author believes that BTC is overvalued, but if you look at their reasons for believing it’s overvalued, some of them could have applied to BTC at any point in time over the past several years, and the rest could have applied to BTC and any point in time since it’s creation.

By buying puts on bitcoin (derivatives), they’re not only betting that they’re correct, but also that something will happen in the next 5-6 months that will catalyze the market to correct that valuation. They don’t have any thesis at all for what’s going to catalyze this correction over the next 5-6 months. Their entire investment thesis is that “[they’d] be astonished if we get through 2021 without an explosion”. The investment described in this blog post is just a crypto-bear yolo play, with less thought put into it than your average r/WSB post.

Edit: looking at the options chain for the BTC ETF they’re shorting, NTM puts are trading at $2, so the underlying has to lose about 1/3rd of its value for that trade to break even. If it goes to $0, their maximum profit is ~$400 per ~$200 contract. That’s certainly not a cheap contract.