I have always had a curiosity about how bitcoin halving services calculate the countdown. For example, you have NiceHash that says halving will happen on May 2 and websites like BitcoinHalving.info that have a quite different date.

Why this difference if halving happens after a fixed number of blocks?

Edit: added website name to the link for transparency

Just wanted to share this beautiful picture.

I'm new, so I'm not sure if this is the right section to share the pic. If that's the case, please feel free to move it.

My dad is 79 yo. He's a retired carpenter but has always been interested in technology, electronics and related stuff. Back in the 90s, when I was just kid, he bought me a computer because he knew that's where the world was headed and we learned to use it together. During the years, I developed my passion in computing and programming and I always taught him to use all the tools needed to be a good user (he even uses things like password managers and multi-factor authentication tools).

Fast forward to early 2020, just before the pandemic, I started to buy BTC and I had always told my dad about this new "digital gold". He was skeptical (he's lived most of his life with FIAT and cash after all) but curious. He thought it was too risky though.

Not sure why, but last week he finally told me he wanted to try it. So we setup his software wallet and he bought 0.01 BTC. Not sure if he'll buy more, but I can certainly say I'm proud of him!

Did you manage to convince your dads or other older people in your family to buy BTC?