Bitcoin has passed another supply milestone: fewer than 900,000 BTC remain to be mined.

More than 95% of the maximum supply has already been issued. The remaining fraction will enter circulation gradually over more than a century, as successive halvings reduce new issuance.

For anyone building a position slowly, it is a number worth thinking about.

I am still working towards 0.1 BTC for my children. This milestone gives me a reason to take stock of that goal, what I have learned along the way, and how Bitcoin fits into our family’s finances.

What “900,000 left” actually means

There is an important distinction behind the headline.

Fewer than 900,000 bitcoin remain to be created through mining. That does not mean there are only 900,000 left to buy. Previously mined coins can change hands whenever their owners decide to sell.

Mining is also far from finished. Under the current issuance schedule, the final fractions are expected around 2140.

So this milestone does not create a deadline for buying Bitcoin. It shows how far the network has progressed through its supply schedule.

Whether that limited supply becomes more valuable still depends on people wanting to own and use it. Scarcity matters, but it cannot tell us what someone will pay in five or twenty years.

I once owned more than my current target

In 2018, I sold 0.32 BTC.

I think about that occasionally, especially because the target I am working towards today is 0.1 BTC.

It would be easy to turn this into another story about what I should have held. Anyone who has spent enough time in crypto probably has a similar calculation somewhere in the back of their mind.

But the past looks much simpler when you already know what happened afterwards.

At the time, I did not have today’s experience or confidence. I made a decision, and I cannot reverse it.

What I can do is decide how to approach Bitcoin now. That means rebuilding gradually, being realistic about what we can afford, and giving more thought to how I would hold a position through another difficult period.

Remembering a sale is easy. Learning enough from it to behave differently takes longer.

Why 0.1 BTC remains my target

There is nothing magical about 0.1 BTC.

It does not guarantee financial independence, and I cannot attach a reliable future value to it. For many households, reaching it already requires a substantial commitment.

For me, it gives a broad ambition a clear shape.

“Accumulate more Bitcoin” has no natural finishing point. There will always be someone with more coins, a lower entry price or a better story.

A defined target lets me measure progress against something I chose for our circumstances.

The arithmetic also provides some perspective. A maximum supply of 21 million BTC contains 210 million portions of 0.1 BTC.

That does not tell us how ownership will be distributed. Some people and institutions hold much more, while others hold smaller amounts or none at all. It does help explain why I consider a fraction worth taking seriously.

I do not need a whole bitcoin for the position to matter to me.

The family budget still comes first

A supply milestone does not change what our household can afford.

Bills still arrive. Children need things. Unexpected expenses can absorb money I had hoped to invest.

If I buy so much Bitcoin that we need the money back during a downturn, I have made holding it harder for myself.

That is why I prefer gradual progress. I want the position to fit into our finances well enough that I can leave it alone when the price becomes uncomfortable.

I explored that balance in what Bitcoin has taught me about surviving market cycles, including why keeping cash available can make a long-term position easier to hold.

Our children’s savings also include conventional investments. Bitcoin has a place within a wider plan, and I want that plan to remain workable if Bitcoin performs worse than I expect.

I find its limited supply compelling. I also know that believing in an investment does not remove the possibility of being wrong.

Reaching the balance is only part of the work

As I build towards the target, I keep coming back to a practical question:

Would my children ever find my Bitcoin if I died tomorrow?

The amount accumulated is only useful to them if they can eventually access it.

They would need to know it exists. There would need to be clear arrangements, with instructions that make sense to someone who has not spent years learning about wallets and private keys.

Those arrangements must also protect access while I am alive. Writing down sensitive information carelessly can create its own problems.

It is easy to postpone this because buying feels like progress, while preparing instructions feels like administration.

But if the purpose includes leaving something for my family, both deserve attention.

Where I stand now

My target remains 0.1 BTC, and I am still building towards it.

The supply milestone strengthens my interest in Bitcoin’s long-term proposition. It does not give me a reason to abandon the pace our family can afford.

I have already experienced what it feels like to look back at Bitcoin I sold. I would rather use that experience to make better decisions now than spend the next few years calculating an alternative past.

For now, progress means adding when I can, keeping the wider finances in order, and making sure that what I build can eventually be understood and used by my family.

Do you have a Bitcoin accumulation target—and how did you decide what was enough for you?