VT
Vanguard Total World Stock ETF
stock NYSE ETF

No, they mean VT, which is the exchange traded fund (ETF) version of VTWAX (a mutual fund).
The ETF version of VTSAX is VTI.

You can just buy VT and hold the entire market. Or you can do an International fund to have exposure to different etfs and a Bond etf ( This is pretty conservative if you are young). You could also do crypto or gold etfs. There are also Small cap and Mid cap etfs. There are a ton of variations but any Large cap US based etf will realistically be the same just with different weightings.

100% equity is aggressive either way. VT gang

You, nor anyone, have any clue what, if anything, is going to beat VT and when.

[three-fund portfolio ](https://www.bogleheads.org/wiki/Three-fund_portfolio)
There's a section here that lists the US and international funds you can start with at Fidelity.
I also believe you can buy VT, VTI, etc. on Fidelity too, but someone else who is more familiar with that will have to chime in.

You’re fine no need for voo; here’s the brief math:
Vt is 60% USA stocks.  And voo makes up like 85% of all U.S. market cap
Sooooo. If VT = 50% of your portfolio than 30% is voo by breakdown of the holdings 
Then you could do the same for qqq and voo overlap

I mean 70% VOO and 30% QQQ would beat VT most years

Seems like it could a good fit between QQQM and VT

I'd just do VT, gives you worldwide exposure.

Throw in some VT for international exposure

He said he has beaten VT every year…

Indeed your comment looks correct from my double checks.
I was referring more abstractly to the overall history of Vanguard's funds versus their ETFs and the part of their question of why Bogleheads have been around a really long time even if VT has not been around as long as we all have.
Rather than intending to refer specifically to VT vs its compatriot VTWIX specifically.
But I should have probably also talked about the original history of Index 500 and the like. The MF was there since the mid 1970s when electronic stock trading just became possible-ish but VOO didn't appear until 2010, ironically later than did VT. 

No but if you started investing from 2008 until now, you would made more in VOO than you would in VT.

You can go back to almost any date over the previous 12 years and read about how the market is about to crash on any of the major market sites. It has been very annoying to me, but they'll be right someday. It may be tomorrow or ten years from now. Based on past performances, they do not have a stellar track record. In the meantime if you're just starting, you may want to consider buying low cost broad asset index funds like VTI, VOO, or VT and hang onto them for a few decades.

VTWIX and VT were born at the same time.

Hello,
I’m at the beginning of what I hope will be a 30+ year investing journey and wanted to run my current plan by you all. My goal is to build a portfolio that I can mostly set and forget, while staying consistent and avoiding the temptation to tinker too much (Reddit definitely doesn’t help with that!). The paradox of choice is real.
Right now, for my taxable brokerage account (held at Fidelity), I’m planning to keep things simple and just use VTI. This is where any extra money goes once we’ve maxed out our tax-advantaged accounts. I like the broad exposure and tax efficiency of VTI, and it keeps the decision-making easy.
For our Roth IRAs (mine and my wife’s), we currently hold a mix of VGT and VUG and plan on maxing this every year. I know this is a bit tech-heavy and concentrated, but I work in the tech field and am okay with the added volatility in this smaller portion of our portfolio and will let it ride out and are okay with 20% dips. We just turned 30 and still feel comfortable with a higher growth tilt here.
For my SEP IRA, I’m hoping to contribute somewhere between $40K to $60K per year depending on how the work income looks. I’m currently deciding between keeping it super simple with VT, or splitting between VTI and VXUS to have more control over the US/international allocation. I like the simplicity of VT, but I also understand the flexibility of holding VTI and VXUS separately, so I’m open to guidance on that.
Lastly, our emergency fund is also at Fidelity and parked in SPAXX. We’re keeping six months of expenses there, and our thought is to just let the interest sit and eventually use any overflow toward BND or another conservative option if it grows beyond what we need.
My goal is to stick with this plan long term and not overcomplicate things. I’d love feedback on whether this strategy makes sense for a hands-off, long-term approach, and if VT is a reasonable choice in the SEP IRA or if I’d be better off keeping the split with VTI and VXUS. Also open to any tax-efficiency tips for how we’re allocating across accounts.
TLDR:
Taxable: VTI
Mine and my Wife's Roth: VUG / VGT
SEP: VTI/VXUs or VT
Emergency Fund: Primarily Spax / BND
Let me know!

Or VT. Assuming you want to keep investments simple, safe, and understandable. This is not a matter of preferring one fund over another, it’s an investment philosophy.
Considering reading some of the justification for this approach in the books by Bogle and the Bogleheads.

There's a currency risk when you invest in economies outside of your own. You need to heavily simplify your holdings. Commodities generally are a bad idea long term, no internal rate of return. Same with crypto, I would sell it.
Just put it into VT, SPMO is also good. Buy some farmland if you feel like you can manage it or rental properties. 

Are they worth holding more than VOO or VT given the added risk? And if the employer runs into a downturn, are you ok with both your employment and investments to be tied to the same single company?

Generally the advice is, if had 100k in cash, would you invest it in Meta stock? If not, and you get 100k in Meta RSUs, you should sell them and invest it in whatever you'd invest that 100k of cash into.

$100k into VTI & VT is great any time as long as your emergency fund is good (assume that’s the HYSA). Not sure why January 1 is a consideration.