The point is, this is precisely the kind of confusion to avoid by maintaining abstinence as your primary mindset.
It is the only way to be sure: abstain at all costs, even if you were given consent, because that consent is not immutable.
You responded to a message which mentioned changing one's mind in terms of continuous consent, not false rape accusations. These are different things. If you want to talk about false rape accusations, don't call it "change of mind".
And that is the point - you're already in the danger zone if you've started and consent has been retracted. Better to just abstain entirely and not engage in sexual activity, at all, under those conditions.
No means no, always. To protect yourself from the "yes .. yes .. okay, no" dilemma .. just say no to casual, irresponsible sex - in the first place.
It is only way to be sure you won't get accused of assault, and even then, if you're not checking for continued consent every few milliseconds while engaged in the act, you're probably having very, very dangerous sex ... so just don't bother.
Why protect yourself? Why is this a dilemma? If you stop when asked, it's not an assault.
If you're worried about this, you're worried about false rape accusations, not some dilemma about people changing their mind. "if you're not checking for continued consent every few milliseconds" is an imagined problem taken to extreme. People who actually change their mind during sex will tell you about it and not treat it as assault.
Ignorance of this fact doesn't support your argument.
Both of these things are relevant in the discussion of consensual sex, and I disagree with your attempt to elevate one position over the other.
Rape is bad because it negates a persons agency over themselves and denies them their basic human rights - false rape accusations also deny a person their basic agency and human rights.
Best way to avoid either case: just don't have sex, i.e. learn the value of abstinence.
It’s important to see how prone to abuse is a new law that will be introduced.
However, I will be teaching my teenage boys that "Yes is not always Yes, it can be changed", and that "No thanks, I'll abstain, even if you give me explicit consent" is always the safest approach.
I’ve seen some people post things like this on Facebook and not realise how crazy it is.
Fundamentally, sex requires trust and analog communication over a connection either physical or verbal.
Of course, in practice people deal with certainly below absolute. But once you admit that, the argument for absolute abstinence loses some of its punch.
If you get consent from your partner, have sex with them, and then your partner changes their mind about it afterwards - for any reason they determine under their own agency, what is to be done to avoid the danger of being falsely accused of not having gained consent, other than to simply abstain?
If consent can be retracted after the act, the act is not safe. So abstinence is the only answer.
And really, this shift towards abstinence is an appropriate social response.