I'm doing this from memory to stay in the spirit of the question. I'd buy ethereum, then pivot to zoom in early 2020, pivot back to etherum mid 2020, then finally to NVIDIA at the end of 2022. I'll look up how well my memory works have served me.
OK, I did the math. I could turn $1K into $74M in 10 years with that strategy. I lost a year of growth because I thought Ethereum was released in 2013 however it was the white paper that was released in 2013, the coin started public trading in August 2015. Either way, I'd still be happy with that return.
2014-06-19 twiddle my thumbs because Ethereum hasn't been released yet
2015-08-01 $1.00 = 3.22ETH
2020-01-02 3.22ETH = $421.24 = 6.12 ZOOM shares (also buy toilet paper and n95 masks)