There's no point talking about it. vs There's no point in talking about it.

Examples:

• There's no point talking about the past. Let's focus on the future.
• There's no point talking about it if no one is willing to listen.
• There's no point talking about the weather when we have more important issues to address.
• There's no point talking about it now; we can discuss it later.
• There's no point talking about things that are beyond our control.

Alternatives:

• There's no use discussing it.
• It's pointless to talk about it.
• Talking about it won't change anything.
• It's a waste of time to talk about it.
• There's no need to bring it up.

Examples:

• There's no point in talking about it further; the decision has been made.
• There's no point in talking about it with someone who doesn't understand the situation.
• There's no point in talking about it until we have all the facts.
• There's no point in talking about it if it only leads to arguments.
• There's no point in talking about it without considering all perspectives.

Alternatives:

• There's no purpose in discussing it.
• It serves no purpose to talk about it.
• Talking about it is futile.
• It's fruitless to talk about it.
• There's no reason to discuss it.