You can save more if you buy things with bitcoin

15 Jan: Alice had bought 0.1 BTC with 100 USD on 1 Jan which is now worth 80 USD so has to add 0.025 BTC from cold storage to buy KFC gift card. Adds 0.025 BTC back to cold storage by buying from a P2P exchange as its saved for long term or emergency.

15 Feb: Bought KFC gift card with no loss.

15 March: Bought KFC gift card with no loss.

15 April: Saved 0.01 BTC

15 May: Saved 0.0125 BTC

15 June: Saved 0.003 BTC

15 July: Alice had bought 0.04 BTC with 100 USD on 1 July which is less than 100 USD now so has to add 0.011 BTC from savings to buy KFC gift card.

15 August: Saved 0.014 BTC

15 September: Alice had bought 0.021 BTC with 100 USD on 1 September which is less than 100 USD now so has to add 0.01 BTC from savings to buy KFC gift card.

15 October: Saved 0.005 BTC

https://www.youtube.com/watch?v=FYo5E7zT-vM

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